Natural Hazards

Natural Hazards

Assessment

Flashcard

Science

7th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a natural hazard?

Back

A natural hazard is a natural event that has the potential to cause harm to people, property, and the environment.

2.

FLASHCARD QUESTION

Front

What is an earthquake?

Back

An earthquake is the shaking of the Earth's surface caused by the sudden release of energy in the Earth's lithosphere.

3.

FLASHCARD QUESTION

Front

What is the Richter scale?

Back

The Richter scale is a numerical scale used to measure the magnitude of an earthquake based on the amplitude of seismic waves.

4.

FLASHCARD QUESTION

Front

What are faults?

Back

Faults are breaks in the Earth's lithosphere where blocks of rock have moved past each other.

5.

FLASHCARD QUESTION

Front

What is the modified Mercalli scale?

Back

The modified Mercalli scale is a scale that uses observations to rate the intensity of shaking from an earthquake.

6.

FLASHCARD QUESTION

Front

What causes earthquakes?

Back

Earthquakes are caused by the movement of tectonic plates and the stress that builds up in the Earth's crust.

7.

FLASHCARD QUESTION

Front

What is a seismograph?

Back

A seismograph is an instrument that measures and records the vibrations caused by seismic waves during an earthquake.

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