2. It’s time for….

4. 100 200 300 400 500 PLANETS 100 200 300 400 500 SMALL PIECES 100 200 300 400 500 SUN 100 200 300 400 500 STARS 100 200 300 400 500 GALAXY

5. A star makes its own light, but planets and moons do this to light

6. What is reflect it?

7. This is another term to describe the inner or rocky planets

8. What is a terrestrial?

9. One trip around the sun

10. What is a revolution?

11. A day and a night or in other words one spin of a planet.

12. What is a rotation?

13. A counterclockwise spin of a planet if seen from the North Pole– the way most planets spin.

14. What is prograde?

15. A large rock in space. Some theorize one of these ended the dinosaur Era.

16. What is an asteroid ?

17. Pluto’s current classification since it is not a true planet.

18. What is a planetisimal?

19. A “dirty snowball” in space.

20. What is a comet?

21. The coma of a comet that is stretched out. It always points away from the sun.

22. What is a tail?

23. The zone beyond pluto where comets are located.

24. What is the Oort cloud?

25. Dark region on the sun where a solar flare will erupt. “ticking time bomb”

26. What is a sunspot?

27. Very large solar flare.

28. What is a prominence?

29. Process of forcing hydrogen atoms to fuse together into helium which creates a great amount of energy.

30. What is fusion?

31. Place in the sun where fusion occurs.

32. What is the core?

33. Caused by the nutrinos of a solar flare interacting with Earth’s atmosphere at the North pole.

34. What is the aurora borealis?

35. “Living” young stars in the Hertzsprung-Russell diagram.

36. What is the main sequence?

37. Medium temperature medium brightness star.

38. What is Sun class or Yellow stars?

39. Hot dim star.

40. What is a white dwarf?

41. Formerly a Supergiant star, this is a very dense region in space that has such great gravity that it can draw in light.

42. What is a black hole?

43. A system of stars where only 2 orbit each other.

44. What is a binary system?

45. All things in existence.

46. What is the universe?

47. A very old round galaxy that has had plenty of time for gravity to make it come together.

48. What an elliptical galaxy?

49. The type of galaxy that our own Milky Way is. These have “arms” like an octopus.

50. What is a spiral galaxy?

51. A very young galaxy that is oddly shaped.

52. What is an irregular galaxy?

53. The theory that the universe started as a small ball of matter/energy and it is exploding outward.

54. What is the big bang theory?