Plate Tectonics

6. a preserved part of a long dead plant
7. pieces of earth's crust and the top of the mantle
8. what magma becomes when it spews out of a volcano
10. hot liquid from inside earth that can be seen in volcanoes
13. current in a liquid that results in convection
14. energy released from a focus inside the earth that makes the ground shake and rumble
16. the surface right above the focus
18. the second deepest part of the earth, made from liquid iron
19. where energy is released creating an earthquake
20. thickest layer of the earth

1. outer part of the earth
2. center of the earth, solid surface that only stays together due to the pressure
3. where all countries and where we live are
4. what makes the continents move 1-4 centimeters every year
5. A Theory That All Continents Were Once Together
9. A hole in the surface of the earth created from plates pushing against each other
11. Creator Of The Pangea Theory
12. top layer of the earth
15. earth's tilt
17. a tool used to show the magnitude of earthquakes