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Grade 5 Science · Scientific Investigation

Grade 5 Scientific Investigation Practice Test

Build Grade 5 Science skills with five 10-question practice tests on questions, hypotheses, variables, controls, procedures, data, graphs, conclusions, models, and safety.

Scientific Investigation Practice Tests

These Grade 5 Science practice tests help students plan and evaluate investigations. Students ask testable questions, write hypotheses, identify variables and controls, follow procedures, collect and graph data, draw evidence-based conclusions, use models, and follow safety practices.

Skills covered

  • Writing focused and testable scientific questions
  • Making testable predictions or hypotheses
  • Identifying independent, dependent, and controlled variables
  • Planning fair tests, control groups, and repeated trials
  • Choosing tools, units, tables, and graphs
  • Connecting data to conclusions and recognizing limitations
  • Using models, communicating results, and following safety rules

How to use these practice tests

For each situation, identify what is changed, what is measured, and what is kept the same. Then decide whether the evidence supports the conclusion and whether the procedure is fair, repeatable, safe, and clearly recorded.

For more Grade 5 Science practice, return to the Grade 5 Science category.

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2. Test

Grade 5 Scientific Investigation Practice Tests

A 10-question Grade 5 Science practice test on scientific questions, hypotheses, variables, controls, procedures, data, graphs, conclusions, models, and safety.

Read each investigation situation carefully, identify the best scientific practice, and use the evidence to evaluate the result.

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

What is the independent variable?

Please select an answer first.

Correct answer: A

The correct answer is The factor that an investigator intentionally changes..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: The independent variable is the tested factor that is changed between groups or trials.
  3. Choose the best scientific practice: The correct choice is The factor that an investigator intentionally changes..

The independent variable is the tested factor that is changed between groups or trials.

2. QuestionMultiple choice

What is the dependent variable?

Please select an answer first.

Correct answer: B

The correct answer is The result that an investigator measures or observes..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: The dependent variable responds to the independent variable and is recorded as data.
  3. Choose the best scientific practice: The correct choice is The result that an investigator measures or observes..

The dependent variable responds to the independent variable and is recorded as data.

3. QuestionMultiple choice

What is a controlled variable?

Please select an answer first.

Correct answer: C

The correct answer is A condition kept the same so the test is fair..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Keeping conditions constant helps isolate the effect of the independent variable.
  3. Choose the best scientific practice: The correct choice is A condition kept the same so the test is fair..

Keeping conditions constant helps isolate the effect of the independent variable.

4. QuestionMultiple choice

In a test of water temperature and dissolving time, what is the independent variable?

Please select an answer first.

Correct answer: D

The correct answer is The temperature of the water..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Water temperature is the factor intentionally changed.
  3. Choose the best scientific practice: The correct choice is The temperature of the water..

Water temperature is the factor intentionally changed.

5. QuestionMultiple choice

In that same test, what is the dependent variable?

Please select an answer first.

Correct answer: A

The correct answer is The time needed for the sugar to dissolve..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Dissolving time is the measured result.
  3. Choose the best scientific practice: The correct choice is The time needed for the sugar to dissolve..

Dissolving time is the measured result.

6. QuestionMultiple choice

Which condition should be controlled in a fair dissolving test?

Please select an answer first.

Correct answer: B

The correct answer is Use the same amount and type of sugar in each cup..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Keeping sugar amount and type constant makes the temperature comparison fair.
  3. Choose the best scientific practice: The correct choice is Use the same amount and type of sugar in each cup..

Keeping sugar amount and type constant makes the temperature comparison fair.

7. QuestionMultiple choice

Why should only one main variable be changed at a time?

Please select an answer first.

Correct answer: C

The correct answer is Then the investigator can better identify which factor caused a difference in results..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Controlling other factors supports a clear cause-and-effect interpretation.
  3. Choose the best scientific practice: The correct choice is Then the investigator can better identify which factor caused a difference in results..

Controlling other factors supports a clear cause-and-effect interpretation.

8. QuestionMultiple choice

A student changes both light and water amount when testing plant growth. What is the problem?

Please select an answer first.

Correct answer: D

The correct answer is The student cannot tell whether light, water, or both caused the growth difference..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Changing two factors at once makes the independent variable unclear.
  3. Choose the best scientific practice: The correct choice is The student cannot tell whether light, water, or both caused the growth difference..

Changing two factors at once makes the independent variable unclear.

9. QuestionMultiple choice

What is a control group?

Please select an answer first.

Correct answer: A

The correct answer is A comparison group that does not receive the tested change..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: A control group provides a baseline for comparing the experimental condition.
  3. Choose the best scientific practice: The correct choice is A comparison group that does not receive the tested change..

A control group provides a baseline for comparing the experimental condition.

10. QuestionMultiple choice

Why are repeated trials important?

Please select an answer first.

Correct answer: B

The correct answer is They help identify consistent patterns and reduce the effect of unusual results..

  1. Identify the investigation skill: Decide whether the question asks about a question, hypothesis, variable, control, data, conclusion, or safety practice.
  2. Use the evidence: Repeated trials increase reliability and help reveal variation.
  3. Choose the best scientific practice: The correct choice is They help identify consistent patterns and reduce the effect of unusual results..

Repeated trials increase reliability and help reveal variation.

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Frequently asked questions about Grade 5 Scientific Investigation

What is a hypothesis?

A hypothesis is a testable prediction about what may happen and why.

Why are controlled variables important?

Keeping important conditions the same helps investigators determine whether the changed variable caused a difference in the result.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 5 Scientific Investigation questions in total.