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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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4. 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 can a streak plate test show?

Please select an answer first.

Correct answer: A

The correct answer is The color of a 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: Rubbing a mineral on a streak plate can reveal its powder color.
  3. Confirm the classification: The correct choice is The color of a mineral’s powder.

Rubbing a mineral on a streak plate can reveal its powder color.

2. QuestionMultiple choice

If mineral A scratches mineral B, what can be concluded?

Please select an answer first.

Correct answer: B

The correct answer is Mineral A is harder than mineral B..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: A harder mineral scratches a softer mineral.
  3. Confirm the classification: The correct choice is Mineral A is harder than mineral B..

A harder mineral scratches a softer mineral.

3. QuestionMultiple choice

Which plan is a fair test of whether water changes a rock’s surface?

Please select an answer first.

Correct answer: C

The correct answer is Use equal-sized samples and the same amount of water while changing only the number of trials..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Keeping conditions controlled makes it easier to identify the effect of repeated water exposure.
  3. Confirm the classification: The correct choice is Use equal-sized samples and the same amount of water while changing only the number of trials..

Keeping conditions controlled makes it easier to identify the effect of repeated water exposure.

4. QuestionMultiple choice

What data should students record when identifying an unknown rock?

Please select an answer first.

Correct answer: D

The correct answer is Observations such as color, texture, layers, hardness, and visible minerals.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Multiple observations provide evidence for classifying the rock.
  3. Confirm the classification: The correct choice is Observations such as color, texture, layers, hardness, and visible minerals.

Multiple observations provide evidence for classifying the rock.

5. QuestionMultiple choice

How can students compare mineral luster?

Please select an answer first.

Correct answer: A

The correct answer is Observe how each mineral reflects light from its 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 compared by observing the way light reflects from a mineral surface.
  3. Confirm the classification: The correct choice is Observe how each mineral reflects light from its surface..

Luster is compared by observing the way light reflects from a mineral surface.

6. QuestionMultiple choice

Why is it useful to test several properties of an unknown mineral?

Please select an answer first.

Correct answer: B

The correct answer is A combination of properties gives stronger identification evidence..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Hardness, streak, luster, and other properties together improve classification.
  3. Confirm the classification: The correct choice is A combination of properties gives stronger identification evidence..

Hardness, streak, luster, and other properties together improve classification.

7. QuestionMultiple choice

A sample is glassy, hard, and has no visible layers. What should a student do next?

Please select an answer first.

Correct answer: C

The correct answer is Compare these observations with property information for possible minerals..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Using observations with reference information is a logical next step.
  3. Confirm the classification: The correct choice is Compare these observations with property information for possible minerals..

Using observations with reference information is a logical next step.

8. QuestionMultiple choice

Which safety practice belongs in a rock and mineral investigation?

Please select an answer first.

Correct answer: D

The correct answer is Wear safety goggles and handle samples carefully..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Goggles and careful handling protect eyes and hands during testing.
  3. Confirm the classification: The correct choice is Wear safety goggles and handle samples carefully..

Goggles and careful handling protect eyes and hands during testing.

9. QuestionMultiple choice

Which conclusion is supported if a sample scratches glass and leaves a white streak?

Please select an answer first.

Correct answer: A

The correct answer is The sample is harder than glass and has a white powder streak..

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: The conclusion uses both observed test results as evidence.
  3. Confirm the classification: The correct choice is The sample is harder than glass and has a white powder streak..

The conclusion uses both observed test results as evidence.

10. QuestionMultiple choice

In an investigation comparing mineral hardness, what should stay the same?

Please select an answer first.

Correct answer: B

The correct answer is The scratch-testing method and the type of test surface.

  1. Observe the material: Look for mineral properties, rock type, formation process, or evidence from an investigation.
  2. Apply the Earth science rule: Controlled conditions make the hardness comparison more reliable.
  3. Confirm the classification: The correct choice is The scratch-testing method and the type of test surface.

Controlled conditions make the hardness comparison more reliable.

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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.