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Unit 4: Earth Systems

Authored by Noha Ibrahim

Science

7th Grade

Used 80+ times

Unit 4: Earth Systems
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27 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is NOT true about the geosphere?

  • It includes all rock material on Earth.

  • It is made up entirely of solid material.

  • It contains iron, magnesium, and oxygen.

  • It is made up of the crust, mantle, and core.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following describes the Earth’s mantle?

  • It is the thinnest, coolest layer of the geosphere.

  • It is the densest, innermost layer of the geosphere.

  • It is the hot, solid, middle layer of the geosphere.

  • It is the least dense, outermost layer of the geosphere.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When objects transfer energy through touch, that process is called _______.

  • radiation

  • convection

conduction

  • densification

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If a foam block floats in a container of syrup but a lead weight sinks, which is the LEAST dense material?

  • foam

  • syrup

  • lead

  • The materials are equally dense.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is magma?

  • any volcanic rock

  • any rock in the core

  • solid rock inside the Earth

  • liquid rock inside the Earth

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is NOT a process in a convection cell in the mantle?

  • Cooler, denser rock sinks due to gravity.

  • The rock cools as it approaches the core.

  • Hotter, less dense rock rises towards the crust.

  • The rock is cooled through proximity to the crust.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The hydrosphere is _______ salt water.

  • losing

  • only 3%

  • about half

  • mostly made up of

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