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.

2. Test

Colorado CMAS Science Practice Questions

A 10-question Colorado CMAS Science practice set on physical 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

What happens when ice is heated enough to melt?

Please select an answer first.

Correct answer: A

The correct answer is It changes from a solid to a liquid..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Melting changes solid ice into liquid water.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Melting changes solid ice into liquid water.

2. QuestionMultiple choice

Which property can be observed without changing a substance?

Please select an answer first.

Correct answer: B

The correct answer is Color.

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Color is a physical property.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Color is a physical property.

3. QuestionMultiple choice

Why does a ball slow down as it rolls across a rough floor?

Please select an answer first.

Correct answer: C

The correct answer is Friction opposes its motion..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Friction acts against motion between surfaces.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Friction acts against motion between surfaces.

4. QuestionMultiple choice

What form of energy is stored in a stretched rubber band?

Please select an answer first.

Correct answer: D

The correct answer is Elastic potential energy.

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: A stretched rubber band stores elastic potential energy.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

A stretched rubber band stores elastic potential energy.

5. QuestionMultiple choice

Which material is usually a good conductor of electricity?

Please select an answer first.

Correct answer: A

The correct answer is Copper.

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Copper allows electric charge to move through it easily.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Copper allows electric charge to move through it easily.

6. QuestionMultiple choice

What happens when a warm object touches a cooler object?

Please select an answer first.

Correct answer: B

The correct answer is Thermal energy moves toward the cooler object..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Heat transfers from warmer matter toward cooler matter.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Heat transfers from warmer matter toward cooler matter.

7. QuestionMultiple choice

A force pushes a box to the right. What can change?

Please select an answer first.

Correct answer: C

The correct answer is The box’s motion..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: A force can change speed or direction.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

A force can change speed or direction.

8. QuestionMultiple choice

Which change forms a new substance?

Please select an answer first.

Correct answer: D

The correct answer is Iron rusts..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Rusting produces a new substance and is a chemical change.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Rusting produces a new substance and is a chemical change.

9. QuestionMultiple choice

What does a simple circuit need for current to flow?

Please select an answer first.

Correct answer: A

The correct answer is A complete path and an energy source..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: A closed path and a source such as a battery are needed.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

A closed path and a source such as a battery are needed.

10. QuestionMultiple choice

Why can a dark surface become warmer in sunlight than a light surface?

Please select an answer first.

Correct answer: B

The correct answer is It may absorb more radiant energy..

  1. Identify the science idea: Read the situation and identify the observable process, pattern, or system.
  2. Use the evidence: Dark surfaces often absorb more radiation than light surfaces.
  3. Check the choice: Choose the answer that best matches the evidence in the task.

Dark surfaces often absorb more radiation than light surfaces.

Choose your next study path

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.