Topic 9 and 10

3. model of the universe where the Sun is at the center
7. all of space and everything in it, that can be seen with technology available
10. the brightness of a star as seen from Earth
11. model of the universe where the Earth is at the center
12. different shapes of the moon as seen from Earth
14. the partial or total blocking of one object in space by another
16. the path of an object as it revolves around another object
19. object that orbits the sun, is large enough to become rounded by its own gravity, and cleared its orbit
22. small rocky object that revolves around the sun
23. the rise and fall of the level of water in the ocean
25. average distance between the center of the Sun and the center of the Earth
28. a pattern or grouping of stars that suggest the outline of a figure or obejct
29. distance that light can travel in one year

1. object that orbits the sun, is not large enough to become rounded by its own gravity, hasn't cleared its orbit
2. all of space and everything in it
4. the tendency of an object to resist a change in motion
5. the force of attraction between two objects
6. giant explosion and expansion that resulted in the formation of the universe
8. tool that collects eletromagnetic radiation to view distant objects
9. a hot ball of gas, undergoes nuclear fusion
13. an oval shape, shape of the planets' orbits
15. a large gaseous body at the center of our solar system
17. the spinning motion of a planet on its axis
18. a system incuding a star and the planets, and other obejcts that revolve around it, all held together by gravity
20. system of stars, star systems, dust, gas, all held together by gravity
21. the movement of an object around another object
24. any object that revolves around another object in space
26. the brightness of a star as if it were a standard distance from Earth
27. natural satellite that revolves around a planet