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Idaho State Assessments · ISAT Science

Idaho ISAT Science Practice Test

Build Idaho science readiness with five focused 10-question practice sets covering life science, physical science, Earth and space science, engineering, data, and evidence.

Idaho ISAT Science practice sets

This Idaho ISAT Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets cover life science, physical science, Earth and space science, engineering and data investigation, and integrated review.

ISAT Science skills

The Idaho Department of Education describes ISAT science assessment for Grades 5, 8, and 11. Use these supplemental questions to practice interpreting models, analyzing data, explaining scientific relationships, evaluating investigations, and using evidence.

How to use this page

Complete one 10-question set at a time. Return to the model, graph, table, or investigation, then review the explanation after each response.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Idaho Department of Education guidance, official assessment materials, accommodations, or testing policies.

For broader grade-level study paths, explore Elementary School Tests, Middle School Tests, and High School Tests.

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Idaho ISAT Science Practice Questions

A 10-question Idaho ISAT Science practice set on earth and space science, with answers and explanations.

Read each investigation, model, graph, or science question carefully, choose one answer, and review the explanation after responding.

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

What process changes liquid water into water vapor?

Please select an answer first.

Correct answer: A

The correct answer is Evaporation.

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Evaporation changes liquid water into a gas when water gains energy.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Evaporation changes liquid water into a gas when water gains energy.

2. QuestionMultiple choice

What causes day and night on Earth?

Please select an answer first.

Correct answer: B

The correct answer is Earth rotates on its axis..

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: As Earth rotates, different parts face toward or away from the Sun.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

As Earth rotates, different parts face toward or away from the Sun.

3. QuestionMultiple choice

Which object provides most of the energy that drives Earths weather and climate systems?

Please select an answer first.

Correct answer: C

The correct answer is The Sun.

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: The Sun provides the energy that drives many atmospheric and surface processes.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

The Sun provides the energy that drives many atmospheric and surface processes.

4. QuestionMultiple choice

What is the main cause of ocean tides on Earth?

Please select an answer first.

Correct answer: D

The correct answer is The gravitational pull of the Moon and Sun.

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Gravitational forces, especially from the Moon, contribute to changing ocean tides.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Gravitational forces, especially from the Moon, contribute to changing ocean tides.

5. QuestionMultiple choice

A layer of sedimentary rock contains shells. What can this evidence suggest?

Please select an answer first.

Correct answer: A

The correct answer is The area may once have been covered by water..

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Shells in sedimentary rock can indicate that the environment once supported aquatic life.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Shells in sedimentary rock can indicate that the environment once supported aquatic life.

6. QuestionMultiple choice

Which event most directly causes a volcanic eruption?

Please select an answer first.

Correct answer: B

The correct answer is Magma and gases rise under pressure through Earths crust..

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Pressure from rising magma and gases can force material through openings in the crust.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Pressure from rising magma and gases can force material through openings in the crust.

7. QuestionMultiple choice

What does a weather map showing closely spaced pressure lines usually indicate?

Please select an answer first.

Correct answer: C

The correct answer is A strong change in pressure over a short distance.

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Closely spaced contour lines show a more rapid change between nearby pressure values.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Closely spaced contour lines show a more rapid change between nearby pressure values.

8. QuestionMultiple choice

Why do coastal areas often have milder temperatures than inland areas?

Please select an answer first.

Correct answer: D

The correct answer is Water changes temperature more slowly than land..

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Large bodies of water heat and cool more slowly, moderating nearby air temperatures.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Large bodies of water heat and cool more slowly, moderating nearby air temperatures.

9. QuestionMultiple choice

Which resource is renewable when it is managed so that new trees replace harvested trees?

Please select an answer first.

Correct answer: A

The correct answer is A forest.

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: Trees can be renewed through growth and responsible management, unlike fossil fuels formed over very long periods.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

Trees can be renewed through growth and responsible management, unlike fossil fuels formed over very long periods.

10. QuestionMultiple choice

A student compares two lunar photographs taken one week apart. What pattern might the student observe?

Please select an answer first.

Correct answer: B

The correct answer is The visible illuminated portion can change over time..

  1. Read the Idaho science task: Identify the system, evidence, variable, model, or scientific pattern the question asks you to examine.
  2. Use scientific evidence: The Moon phases change as the Moon and Earth move in relation to the Sun.
  3. Check the conclusion: Confirm that the answer matches the evidence, uses the correct relationship, and does not claim more than the data show.

The Moon phases change as the Moon and Earth move in relation to the Sun.

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Frequently asked questions about Idaho ISAT Science Practice

Which Idaho Science skills are covered?

The page provides supplemental practice for life science, physical science, Earth and space science, engineering design, data analysis, investigations, and evidence-based reasoning.

How many questions are included?

There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.

Are these official Idaho ISAT questions?

No. These are original supplemental practice questions. Check the latest Idaho Department of Education information for current assessment materials, accommodations, and policies.