2nd Quarter

5. The place where an earthquake originates is called the __________.
7. The youngest rock in the ocean floor is located at the mid-ocean______.
10. The cycle of heating, rising, cooling, and sinking is called________current.
13. how many parts are in Earth's core?
14. Which term refers to the ridged layer of Earth that is about 100 km thick and generally less dense than the material below it?
16. What type of forces create mountains?
18. Each mineral has a set of properties and specific__________ makeup.
20. _________can be located based on different speeds of seismic waves.
21. Which scientist is credited with the continental drift hypothesis? Alferd_______________.
22. The fastest traveling seismic waves are____-_______?
24. Earthquakes occur when rocks __________.

1. Oceanic plates are pushed down into the upper mantle in ______zone.
2. Plates move apart at________boundaries.
3. Plates move together at ______ boundaries.
4. Changes in the ______of seismic waves were used to determine the location of Earth's layers.
6. _____________boundary has plates sliding past each other.
8. continental drift occurs because of _______spreading.
9. The study of Earth and Earth process is called?
10. The process occurring in the mantle that is thought to be the force behind plate tectonics is an example of a(n)___________current.
11. The layer over which the tectonic plates move is the _____________.
12. The property that peels off in flat sheets.
15. an underwater earthquake can cause a wave called a ______.
17. What famous strike-slip fault is located in California.
19. the largest layer of Earth is the _____?
22. What is the name of the giant supercontinent.
23. Earth's inner core is________.