1. Chapter 7, Lesson 1 Earth’s Changing Crust
fault
geologist
magma
lava
weathering
erosion
deposition
surveyor
elevation
seismograph
tension
compression
shear

2. fault – a crack in the Earth’s crust

3. geologist – scientists who study Earth

4. magma – hot, molten rock beneath the earth’s surface

5. lava – magma that reaches the earth’s surface

6. weathering – the breaking down of the materials of the earth’s crust
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different types of weathering.

7. erosion – is the picking up and carrying away of weathered pieces of earth

8. deposition – the dropping of bits of rock

9. surveyor – people who measure the earth

10. elevation – the height of land above sea level

11. seismograph – a device used to measure vibrations of the Earth’s crust

12. tension – stretches or pulls the Earth’s crust apart

13. compression – squeezes or pushed the Earth’s crust together

14. shear – twists, tears, or pushes one part of the crust past another