Use a diagram that shows the positions of the earth and sun to explain the four seasons SPI 0607.6.6

Links verified 5/12/2016

1. Animation of Earth's yearly revolution around the sun - In order to illustrate how much sunlight different parts of Earth receive through the year, this model shows our planet much larger and closer to the sun than it actually is.
2. Do Shadows Change With The Seasons? - a worksheet to print and use with your class [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
3. How Does Sunrise and Sunset Change with the Seasons? - a worksheet to print and use with your class. [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
4. Observe seasonal changes in the amount of sunlight reaching locations on Earth - This animation shows a satellite view of Earth every day for a year. Examine the sunlit side of the globe to recognize the continent of Australia and peninsulas and islands of Southeast Asia.
5. Reasons for the Seasons - includes some excellent illustrations
6. The Reasons for the Seasons - This lesson plan is actually three activities in one to be conducted over a three-day period (one day in the fall, one in the winter, and one in the spring). [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
7. Seasons - find exactly when the seasons start for any year from 1902 to 2102 with this java applet
8. Seasons Reasons - What is the cause of the seasons? This explanation features an animation of the earth's movement during a year. [careful, you may get seasick watching it!]
9. The Seasons - very good diagrams
10. What causes Earth's seasons? - Our planet's tilt dictates cycle of spring and fall
11. What Causes the Seasons - high quality transparency master

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