1																		2
														3		4		5
											6
																		7
			8	9
														10
	11
										12							13									14
		15																				16		17
		18																	19										20
21							22							23
																24
						25	26
																					27		28
				29
									30
31																32													33
	34						35				36							37					38
							39
															40					41				42			43
				44			45
																										46
									47		48
																				49
	50
																					51

Across 5. when one plate dives beneath another 7. states the universe began from an enormous explosion 8. power explosion when a star dies 10. theory that Earth's surface is made of large moving masses 11. largest of the planets 12. dense remains after fusion in red giant stops 14. opening through crust where lava flows to Earth's surface 16. has a volcano named Olympus 18. 3rd rock from the sun 22. directly above the focus 24. formed from other rocks as a result of heat and pressure 25. collection of millions or billions of stars 28. upper layer of the Earth 30. Has the Great Dark Spot 31. distance light travels in 365 days 32. compressed or cemented deposits of sediment 35. describes the sun and solar system forming together from clouds of dust and gas 38. large reddish star late in its life cycle 39. group of gravity bound galaxies 41. the sun and its planets 44. study of earthquakes 46. crack in the Earth created when rocks break or move 48. nine of these orbit the sun 49. traces or remains of plants or animals found in sedimentary rock 50. dead star with density of atomic nuclei 51. change in physical or chemical composition of Earth's exposed surfaces

Down 1. may or may not be a planet 2. the gas and dust located between the stars 3. occurs when an object passes into the shadow of another object 4. molten rock beneath Earth's crust 6. an object so massive and dense light can't even escape 9. sum of all matter and energy that exists now, before and forever 13. zone of mantle that has slowly flowing rock 15. named for the goddess of love 17. expresses teh magnitude of an earthquake 19. planet with blue color 20. area of fault where earthquakes begin 21. illustrates changes rocks undergo 23. process where wind or water change wear down Earth's surfaces 26. precipitation that has pH less than 7 27. formed from cooled and hardened magma and lava 29. small rocky objects that orbit the sun 33. group of stars appearing as a pattern as seen from Earth 34. process where sediment is laid down 36. consists of crust and upper mantle 37. magma that has reached the Earth's surface 40. center of the Earth 42. movement of spectral lines toward the red end 43. burning ball of gas 45. spectacular system of rings 47. lies between crust and core