1st nine weeks Earth and Space

6. This type of earthquake wave cannot travel through liquids.
9. In this state of matter, the particles slide past each other freely.
11. This device allows us to measure the strength of an earthquake.
14. These structures are features that have lost their original function or usefulness due to evolution
15. It occurs when an animal dies in a dry, protected location, like an arid cave, and it's remains dry out or desiccate.
19. To preserve (an organism) so that it becomes a fossil.
20. In this state of matter, the particles are moving very fast and filling their container.
21. This is the layer of the Earth that we stand on.
23. This plate motion occurs when the 2 plates slide past each other.
24. This type of crust is the thinnest.

1. When one tectonic plate goes under another.
2. This type of fault usually occurs at a transform boundary.
3. This type of earthquake wave is the first and can travel through solids and liquids.
4. This surrounds the inner core and is composed mostly of liquid iron and nickel.
5. The theory that life on earth came from outer space.
7. The change in heritable characteristics of biological populations over successive generations.
8. When one tectonic plate goes over top of another.
10. Fossilized tree sap that sometimes contains ancient insects.
12. This plate motion occurs when the 2 plates move away from each other.
13. These structures are parts that look alike but have different functions in different species.
16. This plate motion occurs when the 2 plates move toward each other.
17. Examples of this state of matter are lightning and the sun.
18. This is the center of the Earth and is composed mostly of iron.
22. In this state of matter, the particles are close together and vibrating.