Illustrate how gravity controls the motion of objects in the solar system SPI 0807.12.6

Links verified 9/21/2014

1. Drop an Object - learn about gravitational force by dropping objects - select Earth, Moon or Mars to change gravity's pull on the dropped object
2. Gravity - The Universe's Main Attraction
3. Gravity Concept Map - individual concepts are hyperlinked
4. Gravity Definition Page - from Windows to the Universe
5. How Does Gravity Work - from How Stuff Works
6. How Does Gravity Work in Space - explanation followed by more links to gravity information
7. Is There Gravity on the Moon or in Space? - from the Science and Nature section of Suite 101
8. Newton 's Law of Universal Gravitation - explanation from Wikipedia
9. Sir Isaac Newton - the law of universal gravitation
10. Universal Gravitation - The Apple, the Moon, and the Inverse Square Law
11. Universal Gravitation - Gravity is More Than a Name
12. Universal Gravitation - Newton's Law of Universal Gravitation
13. Why Do Mass and Distance Affect Gravity? - short, simple explanation
14. Your Weight on Other Worlds - determined by how hard a planet pulls on you

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