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Arkansas ATLAS · Grade 8 · Science

Arkansas ATLAS Grade 8 Science Practice Test

Build Grade 8 Arkansas ATLAS Science readiness with five focused 10-question practice sets covering matter, energy, forces, cells, heredity, Earth systems, and scientific evidence.

Arkansas ATLAS Grade 8 Science practice sets

This Arkansas ATLAS Grade 8 Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support supplemental review of physical science, life science, heredity, evolution, Earth systems, engineering, data, and environmental evidence.

Grade 8 Science skills covered

  • Matter, chemical reactions, conservation of mass, energy transfer, forces, motion, circuits, and waves
  • Cell structures, body systems, photosynthesis, cellular respiration, ecosystems, populations, and interactions
  • DNA, genes, alleles, heredity, mutations, natural selection, adaptation, common ancestry, and biodiversity
  • Plate tectonics, weather and climate, water resources, seasons, lunar patterns, carbon cycling, and human impacts
  • Engineering criteria and constraints, variables, models, data displays, uncertainty, design revisions, and evidence-based claims

How to use this page

Complete one 10-question set at a time. Identify the evidence in each scenario, compare patterns in data, and review the explanation for every missed or guessed answer.

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

For the broader Arkansas assessment hub, visit Arkansas State Assessments.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

2. Test

Arkansas ATLAS Grade 8 Science Practice Questions

A 10-question Arkansas ATLAS Grade 8 science practice set on cells, body systems, and ecosystems, with answers and explanations.

Read each scenario 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 cell structure contains genetic material and helps control cell activities?

Please select an answer first.

Correct answer: A

The correct answer is The nucleus.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: In many eukaryotic cells, the nucleus stores DNA and helps direct cell activities.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

In many eukaryotic cells, the nucleus stores DNA and helps direct cell activities.

2. QuestionMultiple choice

Which substances are needed for photosynthesis?

Please select an answer first.

Correct answer: B

The correct answer is Water and carbon dioxide.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Plants use water and carbon dioxide, with light energy, to produce glucose and oxygen during photosynthesis.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Plants use water and carbon dioxide, with light energy, to produce glucose and oxygen during photosynthesis.

3. QuestionMultiple choice

What is the main purpose of cellular respiration?

Please select an answer first.

Correct answer: C

The correct answer is To release usable energy from food molecules.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Cellular respiration breaks down food molecules and transfers energy into a form cells can use.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Cellular respiration breaks down food molecules and transfers energy into a form cells can use.

4. QuestionMultiple choice

Why do muscle cells and nerve cells have different structures?

Please select an answer first.

Correct answer: D

The correct answer is They are specialized for different functions.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Cell specialization allows cells to develop structures that support particular jobs within an organism.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Cell specialization allows cells to develop structures that support particular jobs within an organism.

5. QuestionMultiple choice

Which body systems work together to move oxygen from the lungs to muscle cells?

Please select an answer first.

Correct answer: A

The correct answer is The respiratory and circulatory systems.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: The respiratory system brings oxygen into the body, and the circulatory system transports it through the blood.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

The respiratory system brings oxygen into the body, and the circulatory system transports it through the blood.

6. QuestionMultiple choice

Sweating when body temperature rises is an example of what process?

Please select an answer first.

Correct answer: B

The correct answer is Maintaining homeostasis.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Homeostasis keeps internal conditions within a stable range as the environment or activity changes.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Homeostasis keeps internal conditions within a stable range as the environment or activity changes.

7. QuestionMultiple choice

In a food web, what is the most direct source of energy for a green plant?

Please select an answer first.

Correct answer: C

The correct answer is Sunlight.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Plants capture light energy through photosynthesis and use it to make food.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Plants capture light energy through photosynthesis and use it to make food.

8. QuestionMultiple choice

Why is less energy available to organisms at higher trophic levels?

Please select an answer first.

Correct answer: D

The correct answer is Much of the energy is used for life processes and released as heat.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: Only part of the energy in one trophic level is transferred to the next, while much is used or released as heat.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

Only part of the energy in one trophic level is transferred to the next, while much is used or released as heat.

9. QuestionMultiple choice

A rabbit population grows quickly after predators leave an area. What will most likely limit the population later?

Please select an answer first.

Correct answer: A

The correct answer is Limited food and space.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: As a population grows, competition for food, water, shelter, and space can slow growth.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

As a population grows, competition for food, water, shelter, and space can slow growth.

10. QuestionMultiple choice

A bee gets nectar from a flower while pollinating the flower. What type of relationship is this?

Please select an answer first.

Correct answer: B

The correct answer is Mutualism.

  1. Identify the science idea: Decide whether the question is about matter, energy, forces, cells, heredity, Earth systems, or scientific evidence.
  2. Use the evidence: The bee receives food and the flower receives help with pollination, so both organisms benefit.
  3. Check the claim: Make sure the answer matches the model, observation, data, or system described.

The bee receives food and the flower receives help with pollination, so both organisms benefit.

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Frequently asked questions about Arkansas ATLAS Grade 8 Science Practice Test

Which science skills are covered?

The page covers matter, energy, forces, cells, ecosystems, heredity, evolution, Earth systems, engineering, data, and evidence.

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 ATLAS questions?

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