Earth in Space Review

2. The layer of gases surrounding the Earth, held in place by gravity
5. When light is bent as it travels through an object (art phenomena)
6. If you __________ mass, the force will be greater on an orbiting object
14. A force that attracts between two masses, usually a smaller object attracted to a larger object
15. When light is reflected and scattered in different directions (the reasons the sky is blue and sunrise/sunsets are red)
16. Having to do with the Moon
19. Orbits the Sun, large mass, nothing else similar in size near its gravitational pull
20. The repeating path of an object around a central mass due to gravity
21. An object that orbits a planet

1. Having to do with the Sun
3. The light shadow in which a partial eclipse is seen
4. Push or pull of two objects based on their interaction between them
7. A picture of the Sun taken at the same time daily for several months to show the Sun's change in position over time
8. Any object, natural (Moon) or artificial, that orbits a larger object like a planet
9. The direction of the Earth's orbit around the Sun
10. Predictable and repeating (based on a rule)
11. If you __________ distance, the force will be greater on the orbiting object.
12. A distinct period in a series of repeated changing events
13. How light is measured (longer wavelength = lower energy - red, shorter wavelength = higher energy - blue)
17. The darker shadow in which a total eclipse is seen
18. Spinning on an internal axis