Earthquakes and Volcanoes
Explore the forces that shape our planet with this worksheet on earthquakes and volcanoes, designed for Grade 8 science students.
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Standards
Topics
Earthquakes and Volcanoes
Name:
Date:
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Read each question carefully and answer to the best of your ability. Use the provided diagrams to help you understand the concepts.
1. What is the name of the theory that explains how large pieces of Earth's outermost layer move?
Continental Drift
Plate Tectonics
Seafloor Spreading
Isostasy
2. Which type of plate boundary is associated with the formation of volcanoes?
Divergent boundary
Convergent boundary
Transform boundary
All of the above
3. The point on the Earth's surface directly above an earthquake's focus is called the .
4. Molten rock beneath the Earth's surface is known as , while molten rock that erupts onto the surface is called .
5. Describe the relationship between plate tectonics and the occurrence of earthquakes and volcanoes.
6. Examine the diagram of the volcano cross-section below and label the indicated parts.

A:
B:
C:
D:
7. The Richter scale measures the intensity of an earthquake, while the Mercalli scale measures its magnitude.
True
False
8. Shield volcanoes are known for their explosive eruptions and steep sides.
True
False
9. The diagram below illustrates an earthquake. Identify the focus and epicenter.

Focus:
Epicenter: