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Grade 6 Science · Earths Structure

Grade 6 Earths Structure Practice Test

Build Grade 6 Science skills with five 10-question practice tests on Earths layers, the crust, mantle, core, lithosphere, asthenosphere, density, convection, and seismic evidence.

Earths Structure Practice Tests

These Grade 6 Science practice tests help students understand the layers and internal processes of Earth. Students practice the crust, mantle, outer core, inner core, lithosphere, asthenosphere, density, pressure, temperature, convection, the magnetic field, and evidence from seismic waves and volcanic activity.

Skills covered

  • Ordering and comparing Earths internal layers
  • Connecting layer properties with depth, pressure, and temperature
  • Distinguishing the lithosphere and asthenosphere
  • Explaining convection and internal heat
  • Using density and seismic-wave evidence to interpret models
  • Connecting Earths interior with volcanoes, earthquakes, plate movement, and the magnetic field

How to use these practice tests

Begin by identifying the position of the layer or structure in the question. Then compare its state, composition, temperature, density, and role in Earth processes. For evidence questions, remember that scientists use indirect observations such as seismic waves, density, gravity, and volcanic materials to model the deep interior.

For more Grade 6 Science practice, return to the Grade 6 Science category.

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Grade 6 Earths Structure Practice Tests

A 10-question Grade 6 Science practice test on Earths layers, the crust, mantle, core, lithosphere, asthenosphere, density, convection, and evidence from seismic waves.

Identify Earths layers, compare their properties, explain heat-driven movement, and use scientific evidence to interpret models of the interior.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is the main cause of Earths internal heat today?

Please select an answer first.

Correct answer: A

The correct answer is Heat left from Earths formation and heat released by radioactive materials.

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Earth retains heat from its formation and gains heat from radioactive decay inside the planet.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Earth retains heat from its formation and gains heat from radioactive decay inside the planet.

2. QuestionMultiple choice

How can internal heat affect mantle material?

Please select an answer first.

Correct answer: B

The correct answer is It can create temperature differences that drive slow convection..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Uneven heating produces density differences that can cause movement in the mantle.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Uneven heating produces density differences that can cause movement in the mantle.

3. QuestionMultiple choice

What is one result of Earths magnetic field?

Please select an answer first.

Correct answer: C

The correct answer is It helps protect Earth from some charged particles from the Sun..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Motion of liquid metal in the outer core helps generate the magnetic field.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Motion of liquid metal in the outer core helps generate the magnetic field.

4. QuestionMultiple choice

Which part of Earth is most closely connected to the generation of the magnetic field?

Please select an answer first.

Correct answer: D

The correct answer is The moving liquid outer core.

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Convection and movement of electrically conducting liquid metal in the outer core generate the field.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Convection and movement of electrically conducting liquid metal in the outer core generate the field.

5. QuestionMultiple choice

Why can volcanic eruptions reveal information about Earths interior?

Please select an answer first.

Correct answer: A

The correct answer is Magma brings melted or heated material from below the surface to the surface..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Volcanic materials provide evidence about processes and materials within the crust and mantle.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Volcanic materials provide evidence about processes and materials within the crust and mantle.

6. QuestionMultiple choice

What is magma?

Please select an answer first.

Correct answer: B

The correct answer is Molten rock beneath Earths surface.

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Molten rock is called magma while it remains below the surface.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Molten rock is called magma while it remains below the surface.

7. QuestionMultiple choice

What is lava?

Please select an answer first.

Correct answer: C

The correct answer is Molten rock that reaches Earths surface.

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Magma is called lava after it erupts or flows onto the surface.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Magma is called lava after it erupts or flows onto the surface.

8. QuestionMultiple choice

How can earthquakes help scientists study Earths layers?

Please select an answer first.

Correct answer: D

The correct answer is Seismic waves from earthquakes travel through Earth and reveal changes in material..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Earthquake waves provide information about boundaries, density, and the state of interior layers.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Earthquake waves provide information about boundaries, density, and the state of interior layers.

9. QuestionMultiple choice

Which statement best connects internal processes and surface features?

Please select an answer first.

Correct answer: A

The correct answer is Heat-driven movement inside Earth can contribute to mountains, volcanoes, and earthquakes..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Internal heat and plate movement shape many features and events at Earths surface.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Internal heat and plate movement shape many features and events at Earths surface.

10. QuestionMultiple choice

Why can Earths interior remain hot for a very long time?

Please select an answer first.

Correct answer: B

The correct answer is The planet is large, contains internal heat sources, and loses heat gradually through its surface..

  1. Identify the Earth structure: Determine which layer, boundary, or internal process is described.
  2. Connect properties and position: Earths size and heat sources allow the interior to cool slowly over geologic time.
  3. Check the evidence: Use depth, composition, density, temperature, or motion evidence to confirm the answer.

Earths size and heat sources allow the interior to cool slowly over geologic time.

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Frequently asked questions about Grade 6 Earths Structure

What topics are covered?

The page covers the crust, mantle, outer core, inner core, lithosphere, asthenosphere, density, pressure, temperature, convection, seismic evidence, volcanic evidence, and the magnetic field.

How do scientists study Earths deep interior?

Scientists use indirect evidence such as seismic waves, density, gravity, laboratory studies, and volcanic materials to build and test models of the interior.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 6 Earths Structure questions in total.