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

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Presentation on theme: "Chapter 7, Lesson 1 Earth’s Changing Crust fault geologist magma lava weathering erosion deposition surveyor elevation seismograph tension compression."— Presentation transcript:

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 Click on this picture to explore 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


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