Chapter 1 Review

1. Evidence of sea-floor spreading that wouldn't be comfy to sleep on.
6. Stress that squeezes rock until it folds or breaks.
8. This occurs at a divergent boundary on land.
9. Rigid layer of the Earth that is broken into plates.
10. The super-continent that Wegener discovered.
11. This type of boundary happens when two plates come together.
12. Any trace of an ancient organism, also evidence used in Wegener's theory.
15. Stress that pulls a rock apart, causing stress in the center.
17. This occurs at a divergent boundary in water.
18. This is heat transfer by direct contact or touch.
21. A force that acts on rock to change its shape or volume.
22. Stress that pushes a rock in two opposite directions.
23. The largest layer of the Earth, has convection currents within it.
24. core Completely liquid layer of the Earth, responsible for magnetic field.

2. When crust is pulled back down into the mantle at a deep ocean trench.
3. This type of boundary happens when two plates pull apart.
4. The layer of the upper mantle that flows like rubber.
5. This boundary happens when two plates slide past one another.
7. currents When melted rock is heated, it rises, cools off, and falls back down in a cycle.
8. This is heat transfer through empty space.
13. The device used to map the ocean floor.
14. The shaking and trembling that results from moving rocks.
16. Any change in the volume or shape of Earth's crust.
19. The measure of how much mass there is in an object.
20. The last name of the scientist that discovered Continental drift.