Colorado CMAS · Science · Grades 5, 8, and 11

Colorado CMAS Science Practice Test: Grades 5, 8, and 11

Build CMAS Science readiness with five focused 10-question practice sets covering life science, physical science, Earth and space, environmental systems, and scientific practices.

CMAS Science practice sets

This Colorado CMAS Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets offer supplemental practice for Grades 5, 8, and 11 across life science, physical science, Earth and space science, environmental systems, and scientific investigation.

Science skills covered

  • Living organisms, food and nutrients, roots, cells, populations, relationships, heredity, food chains, biodiversity, and reproduction
  • States and properties of matter, friction, energy, conductors, thermal transfer, forces, chemical change, circuits, and light absorption
  • Earth rotation, solar energy, runoff, erosion, shadows, the Moon, volcanoes, precipitation, fossils, and planetary orbits
  • Clean water, waste reduction, fish populations, forests, renewable resources, invasive species, trees, electricity, sediment, and pollinators
  • Investigation planning, tools, variables, observations, graphs, repeated measurements, models, reliability, and evidence-based explanations

How to use this page

Complete one 10-question set at a time. Identify the evidence, choose the best-supported answer, and review every explanation before moving to the next set.

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

For the Colorado assessment hub, visit Colorado State Assessments.

1. Test

Colorado CMAS Science Practice Questions

A 10-question Colorado CMAS Science practice set on life science, with answers and explanations.

Read each science task carefully, choose one answer, and review the explanation after responding.

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

Which feature shows that a plant is living?

Please select an answer first.

Correct answer: A

The correct answer is It grows and needs water..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Growth and the need for water are signs of a living organism.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Growth and the need for water are signs of a living organism.

2. QuestionMultiple choice

What do animals get from food?

Please select an answer first.

Correct answer: B

The correct answer is Energy and nutrients..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Food provides energy and nutrients needed for life processes.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Food provides energy and nutrients needed for life processes.

3. QuestionMultiple choice

Why do many plants have roots?

Please select an answer first.

Correct answer: C

The correct answer is Roots absorb water and anchor the plant..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Roots take in water and help hold the plant in place.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Roots take in water and help hold the plant in place.

4. QuestionMultiple choice

What is one function of a cell membrane?

Please select an answer first.

Correct answer: D

The correct answer is It controls what enters and leaves a cell..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: The cell membrane helps regulate movement of materials.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

The cell membrane helps regulate movement of materials.

5. QuestionMultiple choice

A rabbit population has less food during a drought. What may happen?

Please select an answer first.

Correct answer: A

The correct answer is Fewer rabbits may survive and reproduce..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Limited food can reduce survival and reproduction.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Limited food can reduce survival and reproduction.

6. QuestionMultiple choice

Which relationship benefits both organisms?

Please select an answer first.

Correct answer: B

The correct answer is Bees get nectar while flowers are pollinated..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Both bees and flowers can benefit from pollination.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Both bees and flowers can benefit from pollination.

7. QuestionMultiple choice

Why are offspring similar to their parents?

Please select an answer first.

Correct answer: C

The correct answer is They inherit genetic information..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Genetic information contributes to inherited traits.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Genetic information contributes to inherited traits.

8. QuestionMultiple choice

What happens to energy as it moves through a food chain?

Please select an answer first.

Correct answer: D

The correct answer is Some energy transfers and less is available at higher levels..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Energy transfers between organisms, with less available at higher trophic levels.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Energy transfers between organisms, with less available at higher trophic levels.

9. QuestionMultiple choice

Which action can help protect biodiversity?

Please select an answer first.

Correct answer: A

The correct answer is Protecting habitats and native species..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Protected habitats support a variety of organisms.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Protected habitats support a variety of organisms.

10. QuestionMultiple choice

Why do organisms reproduce?

Please select an answer first.

Correct answer: B

The correct answer is To produce new organisms of the same kind..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Reproduction allows a species to continue over generations.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Reproduction allows a species to continue over generations.

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Frequently asked questions about Colorado CMAS Science Practice Test

Which Science skills are covered?

The page covers supplemental life science, physical science, Earth and space science, environmental systems, and scientific practices for Grades 5, 8, and 11.

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 CMAS Science questions?

No. These are original supplemental practice questions. Check the latest Colorado Department of Education information for official materials, standards, accommodations, and policies.