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Grade 4 Science · Rocks and Minerals

Grade 4 Rocks and Minerals Practice Test

Build Grade 4 Science skills with five 10-question practice tests on mineral properties, rock types, rock formation, the rock cycle, fossils, investigations, and Earth material uses.

Rocks and Minerals Practice Tests

These Grade 4 Science practice tests help students classify minerals and rocks and explain how Earth materials form and change. Students use properties such as hardness, luster, streak, layers, and texture to identify samples and connect rocks to the rock cycle.

Skills covered

  • Defining minerals and identifying mineral properties
  • Distinguishing igneous, sedimentary, and metamorphic rocks
  • Explaining melting, cooling, compaction, cementation, heat, and pressure
  • Connecting fossils and layers to sedimentary rocks
  • Planning fair tests and using evidence to classify samples
  • Understanding how people use and conserve rocks and minerals

How to use these practice tests

Use more than one property when identifying a mineral or rock. For rock types, ask how the material formed: cooling melted rock, compacted sediment, or changed existing rock under heat and pressure. Use observations and measured evidence to support conclusions.

For more Grade 4 Science practice, return to the Grade 4 Science category.

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5 Tests
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1. Test

Grade 4 Rocks and Minerals Practice Tests

A 10-question Grade 4 Science practice test on mineral properties, rock types, rock formation, the rock cycle, fossils, investigations, and Earth material uses.

Read each Earth science situation and choose the answer that best identifies the mineral property, rock type, formation process, or evidence.

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

What is a mineral?

Please select an answer first.

Correct answer: A

The correct answer is A naturally occurring, inorganic solid with a definite composition.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Minerals form naturally, are not living, are solid, and have characteristic compositions.
  3. Confirm the classification: The correct choice is A naturally occurring, inorganic solid with a definite composition.

Minerals form naturally, are not living, are solid, and have characteristic compositions.

2. QuestionMultiple choice

What does hardness describe in a mineral?

Please select an answer first.

Correct answer: B

The correct answer is How well the mineral resists being scratched.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Hardness measures a mineral’s resistance to scratching.
  3. Confirm the classification: The correct choice is How well the mineral resists being scratched.

Hardness measures a mineral’s resistance to scratching.

3. QuestionMultiple choice

What does luster describe?

Please select an answer first.

Correct answer: C

The correct answer is How light reflects from a mineral’s surface.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Luster is the way a mineral surface reflects light.
  3. Confirm the classification: The correct choice is How light reflects from a mineral’s surface.

Luster is the way a mineral surface reflects light.

4. QuestionMultiple choice

What is a mineral streak?

Please select an answer first.

Correct answer: D

The correct answer is The color of the mineral’s powder.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Streak is observed by rubbing a mineral across a streak plate to leave powder.
  3. Confirm the classification: The correct choice is The color of the mineral’s powder.

Streak is observed by rubbing a mineral across a streak plate to leave powder.

5. QuestionMultiple choice

What can a crystal shape show about a mineral?

Please select an answer first.

Correct answer: A

The correct answer is The organized arrangement of its particles.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Crystal shape is related to how particles are arranged as the mineral forms.
  3. Confirm the classification: The correct choice is The organized arrangement of its particles.

Crystal shape is related to how particles are arranged as the mineral forms.

6. QuestionMultiple choice

Why is color alone often not enough to identify a mineral?

Please select an answer first.

Correct answer: B

The correct answer is Different minerals can have similar colors, and one mineral can have different colors..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Other properties such as hardness, streak, and luster provide more evidence.
  3. Confirm the classification: The correct choice is Different minerals can have similar colors, and one mineral can have different colors..

Other properties such as hardness, streak, and luster provide more evidence.

7. QuestionMultiple choice

How can a student test which of two minerals is harder?

Please select an answer first.

Correct answer: C

The correct answer is Try to scratch one mineral with the other..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: The harder mineral will scratch the softer mineral.
  3. Confirm the classification: The correct choice is Try to scratch one mineral with the other..

The harder mineral will scratch the softer mineral.

8. QuestionMultiple choice

How is a rock different from a mineral?

Please select an answer first.

Correct answer: D

The correct answer is A rock is made of one or more minerals or other Earth materials..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Rocks are mixtures or masses of minerals and can contain other Earth materials.
  3. Confirm the classification: The correct choice is A rock is made of one or more minerals or other Earth materials..

Rocks are mixtures or masses of minerals and can contain other Earth materials.

9. QuestionMultiple choice

What is cleavage in a mineral?

Please select an answer first.

Correct answer: A

The correct answer is The way a mineral breaks along smooth, repeated surfaces.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Cleavage describes predictable breakage along planes of weakness in a mineral.
  3. Confirm the classification: The correct choice is The way a mineral breaks along smooth, repeated surfaces.

Cleavage describes predictable breakage along planes of weakness in a mineral.

10. QuestionMultiple choice

Why do scientists use several mineral properties to identify an unknown sample?

Please select an answer first.

Correct answer: B

The correct answer is Different properties together give stronger evidence for its identity..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: A combination of observations is more reliable than one property alone.
  3. Confirm the classification: The correct choice is Different properties together give stronger evidence for its identity..

A combination of observations is more reliable than one property alone.

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Frequently asked questions about Grade 4 Rocks and Minerals

How are rocks and minerals different?

A mineral is a naturally occurring inorganic solid with a definite composition, while a rock is made of one or more minerals or other Earth materials.

What are the three main rock types?

The three main rock types are igneous, sedimentary, and metamorphic. Each forms through different Earth processes.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 4 Rocks and Minerals questions in total.