Study - Earth in Space
Our best links about studying Earth and the space around it. Covering why we have seasons, night and day, gravity, weight and mass, weightlessness, orbits, planets and phases of the moon.
1. Astronomy and space science - Introduction
Introduction, ideal for 11-14 year olds, to astronomy and space science.
6. How does gravity work?
A scientist from Cornell University tackles the question of how does gravity work
8. Circular Motion and Satellite Motion
In depth site explaining circular motion and how satellites orbit the Earth.
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