4th Grade Science Standards
Embedded Inquiry | Embedded Technology and Engineering | Life Science | Earth and Space Science | Physical Science | Review Help
Return to Grade Level Skills - For other resources, refer to our Elementary Science page

site for teachers | PowerPoint show | Acrobat document | Word document | whiteboard resource | sound | video format | interactive lesson | a quiz | lesson plan | to print

Links verified 9/27/2009

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1. Animal and Plant Cells - first select Similarities and then select Differences from the index on the left at this page.
2. Animal Cell Structure - good drawing, explanation of cell components - scroll down to see component names
3. Cells at the Science Lab - Select Cells in the list of labs. The illustration shows the parts of a cell. Move your mouse around the drawing to get information. Next, click on Looking Through a Microscope near the top of the Cells window. Click on the word View to see cells in a microscope. Click Back to select a new slide to view. Click on the book in the bottom left corner to read about cells.
4. Cell Inspector - match cell parts to the right name
5. Cells are the Starting Point - learn about cells at this Biology4Kids site and then take a quiz on cells or a quiz on organelles.
6. Cross Section of a Plant Cell - from Enchanted Learning [nice, clean drawing]
7. Cross Section of an Animal Cell - from Enchanted Learning [nice, clean drawing]
8. Cells: The Unit of Life - multiple choice quiz - 20 questions
9. - Teaching idea! - Have your students prepare a Venn diagram comparing and contrasting plant and animal cells. Teachnology has an online Venn diagram generator. (scroll past the membership information)
   1. Comparing plant and animal cells - Teachnology has a worksheet to print to help your students get ready for the activity above
10. Comparison of Plant and Animal Cells - illustrations with hyperlinked labels
11. Mixed Up Cells - identify and explain the differences and similarities between plant and animal organelles
12. Parts of an Animal Cell - click and drag the names of structures to match the drawing
13. Parts of a Plant Cell - click and drag the names of structures to match the drawing
14. Plant and Animal Cells - examine a cell, one structure at a time - learn about plant and animal cell organelles with this simulation
15. Plant Cell Structure - good drawing, explanation of cell components - scroll down to see component names
16. Take a Look Inside a Cell - click on an organelle to zoom in, change the animal cell to a plant cell, or make the cell membrane transparent
17. Virtual Cell - Zoom in as if you had an electron microscope

1. Cell Models - information on cell structures and suggestions for making a model - from the Genetic Science Learning Center at the University of Utah
2. Jello 3-D Animal Cell Craft - When the gelatin is set, you can examine your 3-D gelatin cell and then eat it. [from Enchanted Learning]
3. Make a Model Cell - lesson plan from Science NetLinks, designed for middle school but can be adapted to 4th grade classrooms
4. Making a Model of a Cell - [a think quest page] uses baggies, Karo syrup and other messy things
5. Suggestions for making a Cell Model - from a UK site named SAPS [Science and Plants for Schools]

1. Animal Cell Anatomy - a good clean drawing from Enchanted Learning
2. Animal and Plant Cells - first select Similarities and then select Differences from the index on the left at this page.
3. Animal Cells - from Kimball's Online Biology Pages
4. Cell Organelles - select Plant or Animal (from Cells Alive)
5. Cell Parts - simple PowerPoint show comparing organelles of plant and animal cells
6. Comparing plant and animal cells - Teachnology has a worksheet to help your students distinguish between the cells
7. Comparison Of Plant and Animal Cells
8. Comparison of Plant and Animal Cells - 26 slides including a Venn diagram for comparing
9. Focusing on the Cell - a lesson plan from the Children's Museum of Indianapolis
10. Plant and Animal Cell - a sheet to print with side by side labeled cells
11. Plant and Animal Cells - This real-time 3D model allows the user to inspect the structures of both plant and animal cells. The student is able to explore the entire cell from any angle as well as drill down to individual organelles of the cell for more information and a better view.
12. The Plant Cell - from Kimball's Online Biology Pages
13. Plant and Animal Cells Worksheet - lab activity to be used to make drawings of structures seen in a microscope
14. Plant and Animal Worksheets - links to several printables at Teach-nology

1. Exploring Ecosystems - explore the living and non-living parts of three extremely different ecosystems and discover how the parts of the ecosystems interact
2. Good Buddies - activity for students [horrible background]
3. Introduction to Symbiosis - includes an overlapping Venn diagram
4. Predation, Parasitism, Commensalism, and Mutualism in the Garden and in the Community
5. Symbiosis - most of the interactions between species involve food
6. Symbiosis, commensalism, mutualism and parasitism

1. Build a Fish - Build a Fish by choosing a body, mouth, and color/pattern, and then release it into the reef! In the process you will learn about adaptations that help the fish survive in their environment.
2. Flamingos - Adaptations for Their Environment
3. How Cactus survive in the desert
4. Plant Adaptations in Arid Environments - The plants that grow in the arid eastern region near the Columbia River and the Columbia Basin have a number of traits which help them to be successful in the desert.

1. Intertidal Rocky Reefs - from the Barwon Bluff Marine Sanctuary

1. Create a Food Web - choose from four webs, select animals or plants to populate the food web
2. Endangered Ecosystems - Investigate some of the animals in a Mexican ecosystem. Figure out who are the predators and who are the prey and build your own food web.
3. Energy and Ecosystems - lesson plan from Annenberg
4. Energy Pyramid - an alternate way to look at food chains
5. Experiment with a Pond Food Web - change various population sizes to see what affect the change has
6. Food Chain - National Geographic for Kids has a featured Quick Flick from Brain Pop on the subject.
7. Food Chain Game - drag the parts of the food chain to the right place
8. Food Chains - an interactive site from the BBC
9. Food Chains and Food Webs - What's for dinner? from Enchanted Learning
10. Food Chains and Webs - Information regarding population size on food webs is presented here. After learning about food webs, select the link named "create a possible food web" at the bottom of the page. Click and drag to create your own food web.
11. Forest Food Webs - lesson plan from Discovery Education
12. Fun with Food Webs - three webs are available; arctic, meadow, and pond - click and drag elements into place
13. Habitats - investigate food chains with this interactive site from the BBC
14. Interdependence and Adaptation - Use this BBC interactive site to review living things, then take a quiz about interdependence and the food web
15. Interesting Facts About Food Chains - a brief description of the food chains and food webs in an ecosystem
16. Make Your Own Food Web - an interactive food web from Scholastic
17. Predator/Prey Relationship - an interactive investigation from McGraw Hill
18. Welcome to Biology 2002 - This college level PowerPoint show has some great images. Save the show, throw out the college content and modify the show for your classroom.
19. Working on the Food Chain - interactive site

1. Animal's Diet Game - when an animal appears click on the button that describes the animal - click play to start
2. Carnivores, Herbivores and Omnivores - short explanation with example animals for each category
3. Carnivore, Herbivore, or Omnivore? - Research the diet of each animal using the links pictured at this site. Decide where to place the name of each animal on the list provided at the site. Use this information to create a Venn diagram.

1. How Plants Get their Food - [32 slides] this PowerPoint slide show includes a six-question interactive quiz - excellent show

1. Intertidal Rocky Reefs - from the Barwon Bluff Marine Sanctuary

1. r/K Selection Theory - discussion of the two main reproductive strategies; K-selection (few offspring are produced) and r-selection (many offspring are produced) - entry from Wikipedia
2. Tricky Survival for Fish Species - this CNN news report from 4/29/08 states that most asexual species tend not to last as long as sexuals because they are more susceptible to accumulating harmful mutations over many generations

1. Animal Growth and Heredity - a Sunken Millions game for review
2. Beneficials in the Garden - insect metamorphosis
3. Classify This! - You are challenged to classify groups of animals, finally arriving at a distinction between complete and incomplete metamorphosis. Following the interactive classification you will take a quiz.
4. Complete and Incomplete Metamorphosis - a slide show including nine questions
5. Diagram of Complete Metamorphosis
6. Diagram of Incomplete Metamorphosis
7. Dragonfly Lake - a PowerPoint game with slides to print to make a game board
8. Insect Growth and metamorphosis - this page includes sample life cycle diagrams of each
9. Insect Metamorphosis - discussion of each type is followed by insect web sites to visit for the purpose of determining which type of metamorphosis that insect undergoes
10. Insect Metamorphosis Poster - printable lesson activity
11. Insects: Inside and Out - the end of this slide show discuses metamorphosis
12. Life as a Bug - description of complete and incomplete metamorphosis
13. Stages of Butterfly Metamorphosis - from the Science Explorations section of Scholastic.com

1. r/K Selection Theory - discussion of the two main reproductive strategies; K-selection (few offspring are produced) and r-selection (many offspring are produced) - entry from Wikipedia
2. Tricky Survival for Fish Species - this CNN news report from 4/29/08 states that most asexual species tend not to last as long as sexuals because they are more susceptible to accumulating harmful mutations over many generations

1. Animal Growth and Heredity - a Sunken Millions game for review
2. Diagram of Complete Metamorphosis
3. Diagram of Incomplete Metamorphosis
4. Dragonfly Lake - a PowerPoint game with slides to print to make a game board
5. Insect Growth and metamorphosis - this page includes sample life cycle diagrams of each
6. Insect Metamorphosis - discussion of each type is followed by insect web sites to visit for the purpose of determining which type of metamorphosis that insect undergoes
7. Insects: Inside and Out - the end of this slide show discuses metamorphosis

1. Animal Adaptations - animals depend on their physical features to help them obtain food, keep safe, build homes, withstand weather, and attract mates. These physical features are called physical adaptations. Use this Utah Education Network page to investigate animal adaptations.
2. Build Your Own Caterpillar - Build a caterpillar with the tools for surviving in its environment. Look at the environment and then choose the parts that will help your caterpillar have the best chance for survival.
3. Designer Animals: Animal Adaptations - a Hot Chalk lesson plan about adaptation in animals - the idea that certain animals have developed features which help them survive in their environment.

1. Animals in Winter - projects for your students to do
2. Bat Hibernation and Migration - information from the U S Fish and Wildlife Service's Endangered Species Program
3. Hibernation - a ThinkQuest entry includes information on both warm-blooded and cold-blooded hibernators
4. Hibernation, Migration and Adaptation - index page of links with almost three dozen places to find information about the three topics
5. Hibernating Animals Printouts - large number of pages to print from Enchanted Learning
6. How Do Animals Spend the Winter? - migration, hibernation and more from Science Made Simple
7. Polar Bear Migration - an index listing 35 web sites where information can be found [ADHD caution: students could spend a while watching the bear watch a jumping fish :-)]

1. Importance of Tropism - lesson plan from Discovery Education [designed for grades 6-8, but appropriate for this standard]
2. Plant Tropic Responses - time-lapse movies which demonstrate phototropic and gravitropic responses in several different plants
3. Plant Tropisms - a demonstration web page by John Foster designed as part of an MSc. in Biological Computation at The University of York
4. Sunflower Shoot Gravitropism - 180 frames filmed over 5 hours [1 minute]
5. Tropisms - Wikipedia lists, and explains, several types of tropisms
6. Tropism - a growth movement whose direction is determined by the direction from which the stimulus strikes the plant
7. Tropisms - a four part lesson; introduction, animation, conclusion, and a three-question quiz

1. Age of Fossils
2. The Clock Of Eras - a graphic aid to help visualize geologic time
3. Determining Age of Rocks and Fossils - from UCMP Berkeley
4. Fossils, Rocks, and Time - from USGS
5. Fossils Through Time - choose a time period to see what life was like
6. Geology of the Grand Canyon - The ultimate display of rock layers
7. How Old Can it Be? - lesson plan including picture cards to print
8. Prehistoric Life - determining the age of rocks and fossils
9. Principal of Uniformitarianism - states that the processes affecting Earth today are the same ones that affected it in the past.
10. Principle of Superposition - in a sequence of undisturbed sedimentary layers or lava flows, the oldest layers are at the bottom. (includes an animation)
11. Relative Age - determining relative age from the rock record
12. Relative Dating - stratigraphy and the principles of relative dating
13. Relative Time Scale - from USGS
14. Who's On First? - a relative dating activity

1. Deforestation Causes Extinction of 26 Species in Amazon - news report from China View
2. Deforestation Causes Species Extinction in Madagascar - this report from Wild Madagascar claims that lack of lemur dung may contribute to demise of some beetles
3. Human Causes of Extinction and Endangerment - Why are Endangered Species Important? - this report is text only but contains good information for your students
4. Major Causes of Extinction - use this student produced page as the start of a classroom discussion
5. Why the Rapid Decline? - According to this ThinkQuest page, no single reason can be pointed to as the sole cause of an organism's extinction. Take a look at the reasons they cite

1. Draw an Alien in its Natural Habitat - [designed for grades 3-5] Students will be able to apply what they have learned about living things, structures of living things and how living things sense and respond to their environment by creating a habitat and an alien that could live in that habitat.

1. Causes of Extinction - the Why Files has information about wolves and other animals in danger of extinction
2. Direct Causes: Over Exploitation - this ThinkQuest site lists several direct and indirect causes of extinction

1. Animation of a lunar eclipse from Astronomy Picture of the Day
2. How Can the Little Moon Hide the Giant Sun - lesson plan designed for lower grades, but can be modified
3. Animation of a Lunar Eclipse © 2001 Fred Espenak
4. Animation of a Solar Eclipse - simultaneous animation of total, partial, and annular eclipses [produced by Tom Grace]
5. Current Moon Phase Calculator
6. Earth, Sun and Moon - interactive lesson from BBC followed by a quiz
7. Eclipse Interactive - change variables and explore eclipses
8. Eclipses - This real-time 3D simulation of the Sun, Earth, and moon explains lunar and solar eclipses, as well as the defined moon phases. The student can manipulate the Sun, the Earth, and the moon into all of their phases as well as view the phases from a variety of different perspectives.
9. Eclipses and Moon Phases - make selections and see a variety of animations about either type of eclipse or the moon phases
10. Mechanics of Lunar Eclipses - great diagrams | Lunar Eclipses occurring between 1999 and 2020
11. Mechanics of Solar Eclipses - great diagrams | Solar Eclipses occurring between 1999 and 2020
12. Moon and Sun - A solar eclipse composite photo
13. Phases of the Moon - high quality transparency master
14. Phases of the Moon - short lesson on phases with several links to follow
15. Phases of the Moon Interactive - drag the slider left or right to observe different positions and phases
16. Solar Eclipses - explanation and several great images

1. Earth and Moon Matchup - phases and other earth/moon terms are in this Quia Quiz
2. Earth-Moon-Sun system with Moon phases animation - The Sun is to the right of the Earth and Moon. (The animation is near the bottom of their page)
3. Lunar Phases Activities - includes a quiz
4. Moon Phase Calendar - shows the moon phases for each day of the current month.
5. Moon Phases - Excel workbook to use with interactive whiteboard or projection - let students drag phases to the correct position
6. Moon Phase Applet - use this page to see the phases of the moon for an entire year (from 1973 to 2107)
7. Moon Phases Java Applet - Select "both" for the point of view and run the simulation to see the cause of moon phases. Stop the animation and use their chart to see the name of the moon phase.
8. Moonlight Madness - phases of the moon quiz from Star Child
9. The Phases of the Moon - from Enchanted Learning
10. Phases of the Moon - This is one of the best animations for explaining moon phases. (from the Science Alberta Foundation)
11. Phases of the Moon - from Harcourt School (short, simple, well done)
12. Phases of the Moon Activity (from Newton's Apple)
13. Phases of the moon from Earth and space - For each phase, examine how the view from Earth is related to the view from space. [produced by Jennifer Loomis, TERC]
14. Simulation - This Flash simulation shows earth's rotation and the moons revolution at the same time.
15. Virtual Reality Moon Phase Pictures - You can view the phase of the Moon for any date and time [1800-2199 A.D.].
16. What Our Moon Looks Like During a Complete Lunar Cycle - from the Astronomy Picture of the Day
17. Worksheet to use with Moon Phases - One sheet gives students places to draw and name the phase, the other worksheet asks students to identify positions of the moon and earth in relation to the sun for each of the eight phases

1. Interactive Quiz - click on the correct phase
2. Lunar Cycle Challenge - drag the missing moon phase into the correct spaces on the calendar; three levels
3. Moon Phases - Excel workbook to use with interactive whiteboard or projection - let students drag phases to the correct position
4. Put the Moon's Phases in Correct Order - a Quia quiz
5. Worksheet to use with Moon Phases - One sheet gives students places to draw and name the phase, the other worksheet asks students to identify positions of the moon and earth in relation to the sun for each of the eight phases

1. Lunar Cycle Challenge - drag moons to their places in the lunar cycle on this interactive page
2. Lunar Phases Simulation - two images are used (not to scale) showing the progression of the sun across the sky and the rotation of the earth combined with the moon's revolution [click on pause time to discuss the image with your class - click on the Exercises tab to get questions to use with the activity]
3. Moon Phases - very nice interactive site which allows students to change three things and then drag to see the moon change
4. Moon Phases Java Applet - Select "both" for the point of view and run the simulation to see the cause of moon phases. Stop the animation and use their chart to see the name of the moon phase.
5. Phases of the Moon - This is one of the best animations for explaining moon phases. (from the Science Alberta Foundation)
6. Simulation - This Flash simulation shows earth's rotation and the moons revolution at the same time.
7. Understanding the Moon Phases - this page features a good diagram showing how the positions of our moon around Earth causes the phases
8. Why Does the Moon Keep Changing its Shape? - this junior high science page has a good image to reinforce the concept of revolution causing phases

1. An animation showing the formation of an unconformity - This animation shows the formation of an angular unconformity. The final result allows you to infer the sequence of the rocks' formation. [produced by Jennifer Loomis, TERC]
2. Break it Down - Students in Ms. Lee's class are studying the processes of weathering. The steps for their investigation and the data they collected are shown in this sample lab activity
3. Factors that contribute to rock weathering
4. Weathering of Rocks - complete and extensive information about factors related to rocks breaking down

1. Erosion and Sedimentation - posted by the University of Arizona
2. Erosion and Sedimentation Control - overview of methods used by North Carolina Department of Transportation, Roadside Environmental Unit
3. Erosion: Sediment Control - identifies several problem areas which might give your students ideas on things to investigate
4. Geology Quiz: Weathering and Erosion - a fifteen-question multiple choice quiz
5. Moving Rock - a 26 slide PowerPoint show
6. Sediments on the Move - part of a four step lesson on sediments and deposition
7. Soil Erosion - a ten-question multiple choice quiz
8. The Stages of a River - high quality transparency master
9. Weathering and Erosion - suggestions for lab activities investigating erosion
   1. Twelve handouts are available to print and use with the lab above - look in the Activities and Labs section
10. Weathering and Soil - a twenty-question multiple choice quiz

1. Earth Materials: Inexhaustible and Renewable Energy Resources - an eight-question multiple choice quiz
   1. Spanish Version of the quiz
2. Earth Materials: Mineral Resources - a three-question multiple choice quiz
   1. Spanish Version of the quiz
3. Earth Materials: Non Renewable Resources - a fourteen-question multiple choice quiz
   1. Spanish Version of the quiz
4. Earth's Resources - a twenty question multiple-choice quiz

1. Animation showing how coal forms (nonrenewable resource) [produced by Jennifer Loomis, TERC]
2. Classify Resources - Click on Resource ID in the yellow Activities box to take a quiz.
3. Energy Kids - energy facts about various forms of renewable and nonrenewable energy sources
4. Flex Your Power - an interactive quiz in the format of a game show
5. Natural Resources - Can We Use Them Forever?
6. Renewable and Nonrenewable Resources – a quiz written by Kathy Tucker
7. Renewable Energy and You - some things that everyone should know about renewable energy
8. Renewable Energy Fact Sheets - there is a section of fact sheets for kids and one for adults
9. Renewable Energy Sources and the Environment - thirteen multiple choice questions
10. Renewable Energy vs. Fossil Fuels - Suggestion: create a Pro and Con list for each energy source. That will give you a a way to compare the various energy resources.
11. Test Your Energy IQ - fifteen questions, answers follow the questions [not interactive]
12. Test Your Energy IQ Again - ten questions, answers follow the questions [not interactive]

1. Eolian Mapping - USGS site about monitoring wind erosion
2. Erosion of a Sea Stack over 100 Years - a sequence of photos from USGS
3. Factors that Affect Land Loss - interesting graphic organizer

1. Improving the Quality of Life - the Earth's ecosystems are a marvelous resource but must be treated with respect

1. Create a model of the water cycle - lesson plan from Oceans Alive
2. Droplet and the Water Cycle - Avoid pitfalls and predators while you navigate a Droplet through several challenging levels of the hydrological cycle.
3. Follow a drop through the water cycle
4. How You Can Make a Model of the Water Cycle - print this to give to your students
5. The Hydrological Cycle - Watch the animation and then drag the words into the correct positions on the diagram. Click the browser's refresh button at the top of the screen if you would like to see the animation play again.
6. Ideas for teaching about the water cycle - from Pro Teacher
7. Introduction to the Water Cycle
8. Jumbled Water Cycle - click and drag components to their proper place
9. Study Jams: Water Cycle Video - a video from Scholastic.com does a good job of explaining the cycle [the quiz does not work properly]
10. Water Cycle
11. Water Cycle Animation - Observe a raindrop traveling through various paths of the water cycle. In this visualization, the blue raindrop shows where water is. The red arrows show the processes that could move it to another place.
12. Water Cycle Animation - from BBC
13. Water Cycle Animation - make changes to the image by selecting buttons on the left - from EarthGuide
14. The Water Cycle - US Geological Survey's Water Cycle - one of the most complete explanation of the cycle
15. The Water Cycle Lesson Plan - five activities in one
16. Water Cycle Player - interactive animation from Discovery Education
17. Water Science - US Geological Survey's (USGS) Water Science for Schools web site! They offer information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge.
18. Water Cycle - thirty-three slides with some good images
19. Water Cycle - a slide show by Soo Park, Alex Reynolds, Kate Schmidt, Connie Woo, and Christine Zackrison
20. Water Cycle Lesson Plan - from Planet H2O
21. Water Cycle WebQuest - [designed for 5th grade]
22. Water Wizard quizzes - Do you have a fountain of knowledge when it comes to water? Well, dive right in and test your knowledge of water with these Water Wizard quizzes.
23. The Watershed Game - Many things happen in a watershed that affect the quality of the water we rely upon . Examine the issues in each area of the watershed, then see the impacts of your choices.
24. Weather in the Science Lab - Select Weather in the list of labs. The illustration shows a water cycle. Move your cursor around the image for more information. Click on The Weather Maker near the top of the weather window. Set the temperature of two air masses and the relative humidity, and then see what weather develops. Click on the book in the bottom left corner to read about weather.

1. Difference Between Weather and Climate - from the About network
2. Difference Between Weather and Climate - after reading the difference read ten statements and decide if the statement described weather or climate
3. Interactive map of the various types of climate features on the Earth's surface
4. Introduction to Climate - Listing the general distinctions between weather and climate
5. Weather vs Climate
6. What is Climate Change - this begins with a discussion of the difference between weather and climate
7. What is the Difference Between Weather and Climate - posted by NASA Goddard Space Flight Center, Greenbelt, Md.
8. What is the Difference Between Weather and Climate - A laboratory experiment from the
   Little Shop of Physics at Colorado State University

1. Climate - an index of several pages about weather and climate
2. Interactive Weather Maker - investigate how weather is made by observing the effect of the changes that you make

1. Create a model of the water cycle - lesson plan from Oceans Alive
2. Droplet and the Water Cycle - Avoid pitfalls and predators while you navigate a Droplet through several challenging levels of the hydrological cycle.
3. Follow a drop through the water cycle
4. How You Can Make a Model of the Water Cycle - print this to give to your students
5. The Hydrological Cycle - Watch the animation and then drag the words into the correct positions on the diagram. Click the browser's refresh button at the top of the screen if you would like to see the animation play again.
6. Ideas for teaching about the water cycle - from Pro Teacher
7. Introduction to the Water Cycle
8. Jumbled Water Cycle - click and drag components to their proper place
9. Study Jams: Water Cycle Video - a video from Scholastic.com does a good job of explaining the cycle [the quiz does not work properly]
10. Water Cycle
11. Water Cycle Animation - Observe a raindrop traveling through various paths of the water cycle. In this visualization, the blue raindrop shows where water is. The red arrows show the processes that could move it to another place.
12. Water Cycle Animation - from BBC
13. Water Cycle Animation - make changes to the image by selecting buttons on the left - from EarthGuide
14. The Water Cycle - US Geological Survey's Water Cycle - one of the most complete explanation of the cycle
15. The Water Cycle Lesson Plan - five activities in one
16. Water Cycle Player - interactive animation from Discovery Education
17. Water Science - US Geological Survey's (USGS) Water Science for Schools web site! They offer information on many aspects of water, along with pictures, data, maps, and an interactive center where you can give opinions and test your water knowledge.
18. Water Cycle - thirty-three slides with some good images
19. Water Cycle - a slide show by Soo Park, Alex Reynolds, Kate Schmidt, Connie Woo, and Christine Zackrison
20. Water Cycle Lesson Plan - from Planet H2O
21. Water Cycle WebQuest - [designed for 5th grade]
22. Water Wizard quizzes - Do you have a fountain of knowledge when it comes to water? Well, dive right in and test your knowledge of water with these Water Wizard quizzes.
23. The Watershed Game - Many things happen in a watershed that affect the quality of the water we rely upon . Examine the issues in each area of the watershed, then see the impacts of your choices.
24. Weather in the Science Lab - Select Weather in the list of labs. The illustration shows a water cycle. Move your cursor around the image for more information. Click on The Weather Maker near the top of the weather window. Set the temperature of two air masses and the relative humidity, and then see what weather develops. Click on the book in the bottom left corner to read about weather.

1. The Big Picture - the big factors that influence weather and climate worldwide
2. Climate and Weather - Kids Site explanation from the US Environmental Protection Agency
3. Climate Change Games - from the US EPA's Kids Site
4. Weather and Climate Basics - answering the question, " What is the difference between weather and climate?"
5. Weather vs Climate - The Weather Eye gives their explanation of the difference
6. What is Climate and Climate Change? - Our weather is always changing and now scientists are discovering that our climate does not stay the same either
7. What's the Difference Between Weather and Climate? - explanation from NASA
8. World Climate - what the weather is normally like for tens of thousands of places worldwide

1. British and Metric Conversions - a series of pages relating to converting to or from metric units
2. Calculating the Density of a Liquid - tutorial on the math involved plus sample questions
3. Calculating Density of a Solid - tutorial on the math involved plus sample questions
4. Converting Fahrenheit to Celsius - interactive problem from Annenberg
5. Converting Length Measurements - use your knowledge of meters, centimeters and millimeters to answer questions to build a shed
6. Finding the Mass of an Object - tutorial on using a triple-beam balance which includes questions to answer
7. Finding the Volume of an Object - tutorial on using a graduated cylinder which includes questions to answer
8. Platform Scales Addition - weigh several items and find the sum in hundredths of a gram or
9. Platform Scales Subtraction - weigh several items and find the difference in hundredths of a gram or
10. Teaching Measures - links to length, mass, or capacity activities and printables - good for using on an interactive whiteboard for a whole class activity
11. Transparency Master - use this high quality picture of a block of metal on a triple beam balance as a review for your students
12. Using a Graduated Cylinder - [L and mL] a whole class activity for reading a scale, estimating and converting between units or
13. Using a Graduated Cylinder - [mL only] a whole class activity for reading a scale, estimating and converting between units or
14. Using a Platform Scale - practice using scales like the one in a doctor's office, five Gregs will drop on the scale, waiting to be weighed, see how quickly you can weigh them or
15. Using a Ruler - [15 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or
16. Using a Ruler - [30 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or

1. Calculating the Density of a Liquid - tutorial on the math involved plus sample questions
2. Calculating Density of a Solid - tutorial on the math involved plus sample questions
3. Converting Fahrenheit to Celsius - interactive problem from Annenberg
4. Converting Length Measurements - use your knowledge of meters, centimeters and millimeters to answer questions to build a shed
5. Finding the Mass of an Object - tutorial on using a triple-beam balance which includes questions to answer
6. Finding the Volume of an Object - tutorial on using a graduated cylinder which includes questions to answer
7. Platform Scales Addition - weigh several items and find the sum in hundredths of a gram
8. Platform Scales Subtraction - weigh several items and find the difference in hundredths of a gram
9. Teaching Measures - links to length, mass, or capacity activities and printables - good for using on an interactive whiteboard for a whole class activity
10. Transparency Master - use this high quality picture of a block of metal on a triple beam balance as a review for your students
11. Using a Graduated Cylinder - [L and mL] a whole class activity for reading a scale, estimating and converting between units or
12. Using a Graduated Cylinder - [mL only] a whole class activity for reading a scale, estimating and converting between units or
13. Using a Ruler - [15 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or
14. Using a Ruler - [30 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or

1. British and Metric Conversions - a series of pages relating to converting to or from metric units
2. Calculating the Density of a Liquid - tutorial on the math involved plus sample questions
3. Calculating Density of a Solid - tutorial on the math involved plus sample questions
4. Converting Fahrenheit to Celsius - interactive problem from Annenberg
5. Converting Length Measurements - use your knowledge of meters, centimeters and millimeters to answer questions to build a shed
6. Finding the Mass of an Object - tutorial on using a triple-beam balance which includes questions to answer
7. Finding the Volume of an Object - tutorial on using a graduated cylinder which includes questions to answer
8. Platform Scales Addition - weigh several items and find the sum in hundredths of a gram or
9. Platform Scales Subtraction - weigh several items and find the difference in hundredths of a gram or
10. Teaching Measures - links to length, mass, or capacity activities and printables - good for using on an interactive whiteboard for a whole class activity or
11. Transparency Master - use this high quality picture of a block of metal on a triple beam balance as a review for your students
12. Using a Graduated Cylinder - [L and mL] a whole class activity for reading a scale, estimating and converting between units or
13. Using a Graduated Cylinder - [mL only] a whole class activity for reading a scale, estimating and converting between units or
14. Using a Platform Scale - practice using scales like the one in a doctor's office, five Gregs will drop on the scale, waiting to be weighed, see how quickly you can weigh them or
15. Using a Ruler - [15 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or
16. Using a Ruler - [30 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or

1. Changing States: Does it Matter? - a lab worksheet to use in your classroom
2. Chemical vs Physical Change - an online version of a slide show
3. Chemical vs. Physical Properties and Changes - from a Physical Science course at Learner.org
4. Classification of Matter - Answer a series of questions to determine if a substance is a mixture or compound.
5. The difference between chemical and physical changes (from Chem4Kids)
6. Is it Physical or Chemical Change - PowerPoint slide show quiz using action buttons
7. Key Concepts: Chemical vs Physical Changes; Elements vs. Compounds - sample questions and two good concept maps
8. Mixtures and Compounds - a short movie featuring iron and sulphur illustrating the difference between a mixture and a compound
9. Multiple Choice Test on Physical and Chemical Properties and Changes - ten multiple-choice questions
10. Physical and Chemical Change - forty-three slides includes some really great pictures
11. Physical vs. Chemical Change - click on a type of change to observe the molecular details of the process
12. Physical or Chemical Change? - Determine if each is a physical or chemical change. (a Quia quiz)
13. Physical or Chemical Change? - test your knowledge with ten multiple-choice questions
14. Physical and Chemical changes quiz - five multiple-choice questions
15. Physical vs Chemical Change - an interactive lesson (click Next to begin)
16. Physical vs Chemical Change - flashcards from Quia
17. What is the difference between chemical and physical change? - from General Chemistry Online
18. What is the difference between chemical and physical change? - another explanation of the same issue
19. Worksheet on Physical vs Chemical Change

1. Conduction - background information
   1. Conduction lab lesson plan
2. Convection - background information
   1. Convection lab lesson plan
3. Radiation - background information
   1. Radiation lab lesson plan
4. Solar Oven - instructions on building a pizza box solar oven
5. Heat Transfer: Conduction, Convection, and Radiation - each point is illustrated, keep scrolling down through several concepts
6. Understanding Heat Transfer - a twenty three slide PowerPoint show
7. Watt's That? - an energy game in the Jeopardy format

1. Broken Pencil - animation and explanation of the science behind an interesting demonstration
2. Image Formation for Plane Mirrors - good animation showing where an image is formed in a mirror
3. Law of Reflection - good animation from Multimedia Physics Studio
4. Lenses - an interactive optics bench that allows students to investigate the effects of object location on the characteristics of an image - from Shockwave Physics Studios
5. Let There Be Light - a lesson plan designed for 4th grade science [2 hour duration suggested]
6. Ray Optics: Light Refraction - several drawings and a good image are used to explain light refraction
7. Reflection and Refraction of Light Waves - This applet is a sort of tutorial which explains the reflection and the refraction of waves by the principle of Huygens
8. Reflection and the Ray Model of Light - chapter outline of a set of explanations about reflection - four lessons, each with multiple parts
9. Refraction - investigate the refraction and reflection of light at a boundary with this activity from Shockwave Physics Studios
10. Refraction and the Ray Model of Light - chapter outline of a set of explanations about refraction - six lessons, each with multiple parts

1. Light Energy Opaque, Translucent, or Transparent - lesson plan in the form of a PowerPoint template for students to use as they report the result of an activity that they do with digital cameras
2. Translucent, Transparent, and Opaque - short lesson plan with suggested activities for demonstrating each property
3. Translucent, Transparent, and Opaque Objects - lesson plan including suggested activities
4. Transparent, Translucent, or Opaque? - student resource activity sheet to print and use with a lab activity

1. Conduction - background information
   1. Conduction lab lesson plan
2. Convection - background information
   1. Convection lab lesson plan
3. Radiation - background information
   1. Radiation lab lesson plan
4. Solar Oven - instructions on building a pizza box solar oven
5. Understanding Heat Transfer - a twenty three slide PowerPoint show
6. Watt's That? - an energy game in the Jeopardy format

1. The anatomy of a lens
   1. Refraction by Lenses
   2. Image Formation Revisited
   3. Ray Diagrams (converging lenses)
   4. Object-Image Relations
   5. Ray Diagrams (diverging lenses)
   6. Object-Image Relations
   7. The Mathematics of Lenses
2. An index of ray optics animations from the Physics Classroom
3. Dark Wet Spot - video explanation of the effect of water on reflection or transmission of light
4. Experiment with mirrors - study reflection at an interactive BBC site
5. Image Formation in Plane Mirrors - [look at lesson 2] a set of pages with great illustrations, animations, and several quizzes
6. Image Formation by Lenses - [look at Lesson 5] a set of pages with great illustrations, and several quizzes
7. Lens Experiment - Java Applet allows students to change lens position
8. Lenses - an interactive optics bench that allows students to investigate the effects of object location on the characteristics of an image - from Shockwave Physics Studios
9. Light Absorption, Reflection, and Transmission - from a chapter on Color and Vision
10. Properties of Light - reflection, refraction, dispersion, and refractive indices
11. Thick Lens java applet which allows your students to manipulate the variables
12. Thick Lens Java applet - from another source
13. Wavelike Behaviors of Light - from the Physics Classroom
14. What Makes Things the Color They Are? - good illustrations of each of the elements of this SPI

1. Light Energy Opaque, Translucent, or Transparent - lesson plan in the form of a PowerPoint template for students to use as they report the result of an activity that they do with digital cameras
2. Translucent, Transparent, and Opaque - short lesson plan with suggested activities for demonstrating each property
3. Translucent, Transparent, and Opaque Objects - lesson plan including suggested activities
4. Transparent, Translucent, or Opaque? - student resource activity sheet to print and use with a lab activity

1. Describing Motion with Words: Speed and Velocity - this lesson from the Physics Classroom includes a two quick quiz sections and two animation

1. Travel Graphs - several graphs are included in this explanation

1. Friction - [designed for 3-4 UK standards] Investigate friction on a variety of surfaces, then take a quiz.
2. Forces in Action - [designed for 5-6 UK standards] from the BBC

1. Distance, Rate, and Time Word Problems - two pages of explanation, examples, and sample problems from Purple Math explaining the math involved in such an investigation

1. Describing Motion with Words: Distance and Displacement - [Lesson 1] this lesson from the Physics Classroom includes a quick quiz section and two "check your understanding" questions

1. Average vs. Instantaneous Speed - this animation shows one of the factors that influences motion
2. Design a Roller Coaster - Try your hand at designing your own roller coaster. You will be building a conceptual coaster using the physics concepts that are used to design real coasters. You won't need to compute any formulas.
3. Forces in Action - students can change variables and collect data as they investigate factors that influence the motion of a toy truck

1. Graphing Distance vs Time - a lab activity with data included
2. Speed, Distance and Time Calculators - with two of the variables you can calculate the third at this site
3. Understanding Distance, Speed, and Time Relationships Using Simulation Software - electronic example from NCTM including an interactive applet

1. Tech Topics: Electricity - six sections explain electricity

1. Experiments with magnets and our surroundings - lots of activities provided by "Magnet Man"
2. Magnetic Field - a good description from Wikipedia
3. Magnetic Field of a Bar Magnet - The magnetic field of a bar magnet can be investigated with this compass needle applet.
4. Magnetic Lines of Force - high quality transparency master

1. Circuits and Conductors - [designed for 3-4 UK standards] an interactive site from the BBC
2. Electricity and Magnetism - the basics of circuits
3. Investigate a complete circuit at BBC

1. Experiments with magnets and our surroundings - lots of activities provided by "Magnet Man"
2. Magnetic Field - a good description from Wikipedia
3. Magnetic Field of a Bar Magnet - The magnetic field of a bar magnet can be investigated with this compass needle applet.
4. Magnets and Electromagnets - a good description accompanied by several drawings
5. Magnets in My Kitchen - click on objects to see how magnets are used in common household devices

1. Tech Topics: Electricity - six sections explain electricity

1. Circuits and Conductors - [designed for 3-4 UK standards] an interactive site from the BBC
2. Electricity and Magnetism - the basics of circuits
3. Investigate a complete circuit at BBC

1. Introducing the Process of Investigative Science Using Worms - Students are introduced to the process of investigative science through a guided inquiry activity.
2. Student Designed Investigations Part 2 - Testable Questions, Predictions, Materials and Procedures [lesson plan designed for grades 3-5]
3. Student Designed Investigations Part 3 - Collecting Data and Drawing Conclusions [lesson plan designed for grades 3-5]

1. Astro-Venture - [Caution: Long activity!] learn how NASA scientists use tools to find planets in other solar systems
2. Finding the Mass of an Object - tutorial on using a triple-beam balance which includes questions to answer
3. Finding the Volume of an Object - tutorial on using a graduated cylinder which includes questions to answer
4. Teaching Measures - links to length, mass, or capacity activities and printables - good for using on an interactive whiteboard for a whole class activity
5. Using a Graduated Cylinder - [L and mL] a whole class activity for reading a scale, estimating and converting between units or
6. Using a Graduated Cylinder - [mL only] a whole class activity for reading a scale, estimating and converting between units or
7. Using a Ruler - [15 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or
8. Using a Ruler - [30 cm ruler] a whole class activity for reading a ruler, estimating and converting between units or

1. Bird Sleuth: Investigating Evidence - this module consists of five investigations which give students the chance to learn science by doing science
   1. Teacher's Guide - a 44 page .pdf document
   2. Resource Pages - a 28 page .pdf document
   3. Investigator's Journal - a 25 page .pdf document
2. How Does My Garden Grow? - Writing in Science Field Journals - lesson plan
3. Student Designed Investigations Part 1 - Observations [lesson plan designed for grades 3-5]

1. Conducting Controlled Investigations: Example Using Sound - [designed for grades 3-5] identify when there are multiple variables changing in an investigation and how to modify the investigation so that there is only one variable
2. Student Designed Investigations Part 4: Poster Presentations/Science Fair - This unit ends with students deciding on a testable question, designing an investigation, doing the investigation, collecting data and drawing conclusions. Students then create poster presentations of  their investigation for a grade level science fair.

1. Bird Sleuth: Investigating Evidence - this module consists of five investigations which give students the chance to learn science by doing science
   1. Teacher's Guide - a 44 page .pdf document
   2. Resource Pages - a 28 page .pdf document
   3. Investigator's Journal - a 25 page .pdf document
2. Keep-a-Cube - Using materials listed, make a container to see how long you can keep an ice cube from melting. Find out what works best to keep the heat away from the ice cube.

1. Young Engineer's Club - hundreds of exciting games, activities, and science experiments posted by the U. S. Army Corps of Engineers

1. Released Test from Texas - Read the question and choose the best answer. Then mark the circle next to the letter for the answer you have chosen.