1
									2
			3
			4	5
																		6
																7
8
9							10				11
		12																		13
														14				15
	16
						17
18

Across 1. a break in a rock mass caused by a shifting of the earth's crust 3. destruction or ruin 4. easily affected 8. crackling with intense heat 9. to swirl in a circular motion 11. shook or vibrated 12. the flash of light in the sky when electricity passes between clouds or between a cloud and the ground 14. to bump into another mass with force 17. a sudden jerk or bump 18. flat, open grasslands

Down 1. tornado cloud that is wide at the top and narrow where it touches the ground 2. a trembling or shaking of the ground caused by movements far below the earth's surface 5. moving in waves or with a smooth, wavy motion 6. having a sharp, pointed edge or outline 7. a lifting or upward movement of the earth's crust 10. rotating columns of air accompanied by whirling funnel-shaped downspouts 13. serious or extreme in nature 15. the striking of one body against another 16. the remains of something broken or destroyed