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REVIEW QUESTIONS_Dynamic Crust_2024-2025

REVIEW QUESTIONS_Dynamic Crust_2024-2025

Assessment

Flashcard

Science

9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What are P-waves?

Back

P-waves, or primary waves, are seismic waves that compress and expand the material they move through. They are the fastest seismic waves and can travel through solids, liquids, and gases.

2.

FLASHCARD QUESTION

Front

What are S-waves?

Back

S-waves, or secondary waves, are seismic waves that move the ground up and down or side to side. They are slower than P-waves and can only travel through solids.

3.

FLASHCARD QUESTION

Front

What is the shadow zone in seismology?

Back

The shadow zone is an area on the Earth's surface where no seismic waves are detected after an earthquake, indicating the presence of a liquid outer core.

4.

FLASHCARD QUESTION

Front

How do P-waves behave when they encounter the Earth's outer core?

Back

P-waves are refracted when they enter the outer core, which is liquid, allowing them to travel through it.

5.

FLASHCARD QUESTION

Front

How do S-waves behave when they encounter the Earth's outer core?

Back

S-waves are absorbed by the outer core and cannot travel through it, which is why they do not appear in the shadow zone.

6.

FLASHCARD QUESTION

Front

What is the relationship between tectonic plates and mid-ocean ridges?

Back

Mid-ocean ridges form at divergent boundaries where tectonic plates are moving apart, allowing magma to rise and create new oceanic crust.

7.

FLASHCARD QUESTION

Front

What is a seismogram?

Back

A seismogram is a record produced by a seismograph that shows the arrival times of seismic waves from an earthquake.

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