Earth's Interior Composition and Properties

Earth's Interior Composition and Properties

Assessment

Interactive Video

Physics, Science, Geography

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explores the concept of density, focusing on Earth's density, which is about 5.5 grams per cubic centimeter. It explains the composition of Earth's interior, primarily rock and iron, and how pressure and temperature affect density. The core's density is higher due to immense pressure, and despite high temperatures, the core remains solid. The rotation of Earth's core differs slightly from the rest of the planet, providing insights into its composition and behavior.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the average density of the Earth compared to water?

5.5 times

7 times

3 times

2 times

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the assumed density of rock for calculation purposes?

2.6 grams per cubic centimeter

3 grams per cubic centimeter

4 grams per cubic centimeter

5 grams per cubic centimeter

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the Earth's density higher than expected?

Due to the presence of water

Because of decreased temperature

Because of increased pressure

Due to the presence of more rock

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What contributes to the higher average density of the Earth besides iron?

Zinc

Aluminum

Nickel

Copper

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the density at the very center of the Earth?

14 grams per cubic centimeter

8 grams per cubic centimeter

10 grams per cubic centimeter

12 grams per cubic centimeter

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the temperature at the Earth's center?

3,000 Kelvin

6,500 Kelvin

4,500 Kelvin

5,700 Kelvin

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What state is iron in at the Earth's center despite high temperatures?

Liquid

Gas

Solid

Plasma

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