Science 6 Ch. 1
Across
- 2. The idea that the earth's crust is made up of moving plates is called the theory of plate _________
- 4. _________ happen when the rocks along the plate boundaries shift suddenly and release their stored energy
- 6. An earthquake, volcano, or landslide occurring under or near the ocean can cause a series of giant waves called ________
- 7. The part of the earth is made up of the crust and the upper area of the mantle
- 9. ________ waves flow out from the focus in all directions, similar to the ripples caused when a pebble is tossed into a pond
Down
- 1. Waves of energy are send out from the ________, or beginning point of the earthquake under the surface
- 3. Scientists who study the movement of the earth are called _____
- 5. Scientists believe that _________ was a single large landmass on the earth at one time
- 8. A _______ is the machine used to detect, time, and measure the movements of the earth
- 10. Volcanoes produce _____ rocks as magma and lava cool and harden