1. Natural
Disasters

2. Cyclones

3. Previous
Cyclones

4. Cyclone Tracey
Darwin 1974

6. Tornadoes

9. YouTube - HUGE MANITOBA T

11. Earthquakes

16. Tsunamis

17.  TIME: What Was Lost: Deadly Wave

19. Tsunamis

21. Volcanoes

22. Volcanoes

23.  Volcano
1. Magma chamber
2. Country rock
3. Conduit (pipe)
4. Base
5. Sill
6. Branch pipe
7. Layers of ash emitted by the volcano
8. Flank
9. Layers of lava emitted by the volcano
10. Throat
11. Parasitic cone
12. Lava flow
13. Vent
14. Crater
15. Ash cloud

27. http://www.youtube.com/
watch?v=-
H_HZVY1tT4&feature=re
lated

28.  YouTube - Comet Shoemaker Levy
colliding with Jupiter