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Iowa State Assessments · ISASP Science

Iowa ISASP Science Practice Test

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

Iowa ISASP Science practice sets

This Iowa ISASP Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets cover physical science, life science, Earth and space science, investigation design, data interpretation, engineering, models, evidence, and scientific reasoning.

Science skills covered

  • Forces, energy, matter, waves, circuits, thermal transfer, motion, and chemical change
  • Cells, photosynthesis, ecosystems, genetics, natural selection, body systems, decomposers, inheritance, and homeostasis
  • Earth rotation, tides, water cycle, rocks, fossils, climate, seasons, ocean currents, weather, and the expanding universe
  • Variables, controls, repeated trials, graphs, credible sources, scientific models, design criteria, and evidence-based revision
  • Integrated data analysis, cause and effect, systems thinking, prediction, engineering solutions, and scientific claims

How to use this page

Complete one 10-question set at a time. Identify the system or process, use the evidence in the question, and connect the pattern to a scientific principle before choosing an answer.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Iowa Department of Education guidance, official ISASP materials, blueprints, accommodations, or testing procedures.

Current Iowa assessment information may change by year and grade. For official subject and grade details, visit the Iowa Department of Education summative assessment page. For the broader Iowa assessment hub, visit Iowa State Test Practice or explore Elementary School Tests, Middle School Tests, and High School Tests.

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Iowa ISASP Science Practice Questions

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

Read each scenario, diagram description, data pattern, or claim 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 causes day and night on Earth?

Please select an answer first.

Correct answer: A

The correct answer is Earth rotates on its axis..

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: As Earth rotates, different locations face toward or away from the Sun.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

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

2. QuestionMultiple choice

What is the main cause of ocean tides?

Please select an answer first.

Correct answer: B

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

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Gravity from the Moon and Sun causes regular changes in ocean water levels.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Gravity from the Moon and Sun causes regular changes in ocean water levels.

3. QuestionMultiple choice

Which process changes liquid water into water vapor?

Please select an answer first.

Correct answer: C

The correct answer is Evaporation.

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Evaporation occurs when liquid water gains energy and becomes a gas.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Evaporation occurs when liquid water gains energy and becomes a gas.

4. QuestionMultiple choice

What type of rock forms when melted rock cools and hardens?

Please select an answer first.

Correct answer: D

The correct answer is Igneous rock.

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Cooling magma or lava forms igneous rock.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Cooling magma or lava forms igneous rock.

5. QuestionMultiple choice

Why are fossils useful to scientists?

Please select an answer first.

Correct answer: A

The correct answer is They provide evidence about past organisms and environments..

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Fossils preserve evidence of organisms and conditions from the past.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Fossils preserve evidence of organisms and conditions from the past.

6. QuestionMultiple choice

Which factor most directly drives surface ocean currents?

Please select an answer first.

Correct answer: B

The correct answer is Global winds.

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Wind transfers energy to surface water and helps move ocean currents.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Wind transfers energy to surface water and helps move ocean currents.

7. QuestionMultiple choice

What happens when warm, moist air rises and cools?

Please select an answer first.

Correct answer: C

The correct answer is Water vapor can condense into clouds..

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Cooling air can reach saturation, causing water vapor to condense into cloud droplets.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Cooling air can reach saturation, causing water vapor to condense into cloud droplets.

8. QuestionMultiple choice

Which statement best describes climate?

Please select an answer first.

Correct answer: D

The correct answer is The long-term pattern of weather in a region.

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: Climate describes long-term patterns, while weather describes short-term conditions.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

Climate describes long-term patterns, while weather describes short-term conditions.

9. QuestionMultiple choice

Why do the seasons change as Earth travels around the Sun?

Please select an answer first.

Correct answer: A

The correct answer is Earths axis is tilted as Earth orbits the Sun..

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: The tilt changes the angle and duration of sunlight received by each hemisphere.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

The tilt changes the angle and duration of sunlight received by each hemisphere.

10. QuestionMultiple choice

What is one piece of evidence that the universe is expanding?

Please select an answer first.

Correct answer: B

The correct answer is Light from distant galaxies is shifted toward longer wavelengths..

  1. Identify the science idea: Determine whether the task asks about a system, pattern, model, cause and effect, evidence, or a design solution.
  2. Use the evidence: The redshift of distant galaxies indicates that many galaxies are moving away as space expands.
  3. Check the model: Confirm that the selected answer is consistent with the observation, data, diagram, or scientific principle.

The redshift of distant galaxies indicates that many galaxies are moving away as space expands.

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Frequently asked questions about Iowa ISASP Science Practice

What does Iowa ISASP Science practice include?

Iowa Science assessment practice includes physical science, life science, Earth and space science, data analysis, investigation design, engineering, models, and evidence-based reasoning.

Which grades are included in Iowa science assessment information?

Current Iowa Department of Education information lists Science for Grades 5, 8, and 11. Check the official Iowa page for current assessment updates and implementation details.

Are these official Iowa ISASP questions?

No. These are original supplemental practice questions. Use the official Iowa Department of Education pages for current blueprints, released materials, accommodations, policies, and testing procedures.