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Arizona AzSCI · Grade 8 · Science

Arizona Grade 8 AzSCI Science Practice Test

Build Grade 8 Arizona AzSCI readiness with five focused 10-question practice sets covering cells, genetics, ecosystems, matter, energy, Earth systems, engineering, and scientific evidence.

Arizona Grade 8 AzSCI practice sets

This Arizona Grade 8 AzSCI Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support supplemental review across life science, physical science, Earth and space science, engineering, investigation, data, and scientific explanation.

Skills covered

  • Cell structures, cell division, genes, chromosomes, dominant traits, natural selection, fossils, competition, and biodiversity
  • Elements, chemical reactions, conservation of mass, particles, density, thermal energy, potential energy, circuits, forces, and waves
  • Tectonic plates, rocks, climate, greenhouse gases, carbon and water cycles, seasons, Moon phases, renewable energy, and Earth history
  • Variables, controls, association and causation, models, graphs, repeated measurements, precision, engineering constraints, prototypes, and CER responses
  • Integrated Grade 8 science practice with algae blooms, insulation, earthquake design, genotype and phenotype, climate data, energy transformations, filters, and invasive species

How to use this page

Complete one 10-question set at a time. Record the evidence that supports each answer, review the explanation, and revisit any model or data interpretation that caused an error.

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

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

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

5. Test

Arizona Grade 8 AzSCI Science Practice Questions

A 10-question Arizona Grade 8 AzSCI science practice set on integrated grade 8 science practice, with answers and explanations.

Read each science 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

Fertilizer washes into a lake and causes a rapid increase in algae. What is a likely concern?

Please select an answer first.

Correct answer: A

The correct answer is Oxygen may decrease when algae die and decompose.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: Decomposition can use dissolved oxygen and harm aquatic organisms.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

Decomposition can use dissolved oxygen and harm aquatic organisms.

2. QuestionMultiple choice

Which evidence would best show that a building material is a good insulator?

Please select an answer first.

Correct answer: B

The correct answer is Water in a container wrapped with the material changes temperature more slowly.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: A slower temperature change is direct evidence that less thermal energy is transferred.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

A slower temperature change is direct evidence that less thermal energy is transferred.

3. QuestionMultiple choice

Why are flexible building designs useful in earthquake-prone regions?

Please select an answer first.

Correct answer: C

The correct answer is They can reduce the effects of shaking by allowing controlled movement.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: Flexible structures can move with some ground motion instead of breaking suddenly.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

Flexible structures can move with some ground motion instead of breaking suddenly.

4. QuestionMultiple choice

Two organisms have the same phenotype but different genotypes. What does this show?

Please select an answer first.

Correct answer: D

The correct answer is Different genetic combinations can produce the same observable trait.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: A dominant allele can make different allele combinations look the same.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

A dominant allele can make different allele combinations look the same.

5. QuestionMultiple choice

A city temperature record shows a long-term upward trend. What additional evidence would strengthen a climate conclusion?

Please select an answer first.

Correct answer: A

The correct answer is Temperature records from multiple locations and many years.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: Long-term data from multiple locations helps identify a broader climate pattern.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

Long-term data from multiple locations helps identify a broader climate pattern.

6. QuestionMultiple choice

A solar panel powers a fan. Which energy transformation occurs?

Please select an answer first.

Correct answer: B

The correct answer is Light energy becomes electrical energy and then motion energy.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: The panel converts light to electricity, and the motor converts electricity to motion.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

The panel converts light to electricity, and the motor converts electricity to motion.

7. QuestionMultiple choice

A filter removes particles but not dissolved salt. What should the design team conclude?

Please select an answer first.

Correct answer: C

The correct answer is The filter meets one goal but needs another method for salt.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: The result identifies what the filter can do and the remaining design need.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

The result identifies what the filter can do and the remaining design need.

8. QuestionMultiple choice

An invasive species has no natural predators in a new habitat. What may happen?

Please select an answer first.

Correct answer: D

The correct answer is Its population may grow and compete with native species.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: Without predators, the invasive population may expand and use resources needed by native species.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

Without predators, the invasive population may expand and use resources needed by native species.

9. QuestionMultiple choice

A graph shows that reaction rate increases as temperature rises to 40 degrees, then decreases. What does the graph suggest?

Please select an answer first.

Correct answer: A

The correct answer is The reaction has an optimal temperature near 40 degrees.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: The peak indicates the condition where the measured reaction rate is greatest.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

The peak indicates the condition where the measured reaction rate is greatest.

10. QuestionMultiple choice

Which explanation best connects evidence to a conclusion about a changing ecosystem?

Please select an answer first.

Correct answer: B

The correct answer is The reduced plant cover lowers available food, so herbivore numbers decline.

  1. Identify the evidence: Read the model, observation, or scenario and identify the scientific evidence provided.
  2. Apply the science idea: The explanation identifies evidence and a cause-and-effect relationship within the food web.
  3. Check the conclusion: Make sure the conclusion is supported by the evidence and answers the question.

The explanation identifies evidence and a cause-and-effect relationship within the food web.

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Frequently asked questions about Arizona Grade 8 AzSCI Science Practice Test

Which Grade 8 science skills are covered?

The page covers cells, genetics, ecosystems, matter, energy, forces, waves, Earth systems, climate, engineering, data, and scientific 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 AzSCI questions?

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