Earthquakes, Volcanoes and Tsunamis

How is a tsunami different from an earthquake?

• A tsunami is caused by an earthquake or volcano.

• A tsunami causes an earthquake.

• A tsunami is measured on a Richter scale.

• A tsunami doesn't cause any damage to property.

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What does the Richter scale measure?

• the strength of earthquakes

• the amount of magma released

• the time plates will move

• all of the above

Which of the following states a fact?

• Earthquakes aren't dangerous.

• Earthquakes are easy to predict.

• Volcanoes are less damaging than earthquakes.

• The Earth is constantly changing.

What is magma?

• giant pieces of rock and soil that make up the surface of the Earth

• cracks in the surface of the earth

• melted, liquid rock beneath Earth's crust

• enormous ocean waves

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Why don't you see a tsunami in the middle of the ocean?

• It hasn't built up enough strength yet.

• It is deep but not high above the surface.

• It only happens near the shore.

• All of the above.

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How are earthquakes, volcanoes, and tsunamis alike?

• All are caused by activity deep in the Earth.

• All cause a drop in the Earth's temperature.

• All give off poisonous gases.

• All of the above.

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Which of the following could happen as a result of a volcanic eruption?

• landslides

• fires

• cooling of Earth's temperature

• all of the above

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Which of the following states an opinion?

• Tsunamis are the largest type of waves.

• Clouds of dust and ash rise into the air during a volcanic eruption.

• Underwater earthquakes cause the sea floor to move violently.

• Earthquakes are the most damaging natural disaster.

Which word means cracks in the surface of the Earth usually around the edges of plates.

• plates

• faults

• mudslides

• earthquakes

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What is the main idea of this book?

• One day, scientists will be able to warn people before earthquakes occur.

• Earthquakes, volcanoes, and tsunamis are some of the most destructive forces of nature.

• Volcanic explosions can be so powerful that they can knock over entire forests.

• Even small tsunamis can destroy houses.

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