Volcano-Earthquakes

3. Arc String of islands
8. Weak spot in the crust where molten material comes to the surface.
9. scale A way to classify earthquakes
11. a sudden and violent shaking of the ground
12. of Fire Volcanic belt formed by many volcanoes that rim the Pacific Ocean
13. eruptions flow easily, dark colored, oozes quietly from the vent and flows for many kilometers.
14. eruptions light colored, thick and sticky, builds up in the volcano’s pipe until there is enough
17. bowl-shaped area that may form at the top of a volcano
18. Waves an elastic wave in the earth produced by an earthquake

1. Flow Are covered by lava as it comes out of the volcano
2. Boundary Plates push away
4. spot area where material from deep within the mantle rises and then melts, forming magma.
5. molten mixture of rock-forming substances, gases, and water from the mantle.
6. Boundary Plate come together
7. Long tube in the ground that connects the magma chamber to Earth’s surface
8. An opening where molten rock and gas leave the volcano
10. Andreas Fault separates Pacific plate from the North American plate
15. Tectonics a theory explaining the structure of the earth's crust
16. Crust the thin part of the earth's crust that is underneath the ocean basins