Alaska Science Assessment · Grade 10

Alaska Grade 10 Science Assessment Practice Test

Build Grade 10 Alaska science assessment readiness with five focused 10-question practice sets covering chemistry, biology, Earth systems, climate, engineering, data, and Alaska applications.

Alaska Grade 10 Science Assessment practice sets

This Alaska Grade 10 Science Assessment Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support Grade 10 review across chemistry, energy, physics, biology, genetics, ecology, Earth systems, climate, engineering, data, and Alaska-related phenomena.

Skills covered

  • Balanced equations, energy changes, pH, force, momentum, circuits, waves, particle models, and nuclear changes
  • DNA replication, protein synthesis, meiosis, mutations, cellular respiration, enzymes, carrying capacity, succession, genetics, and homeostasis
  • Carbon cycle, climate evidence, subduction, climate models, ocean currents, albedo, aquifers, stars, and eclipses
  • Experimental design, random assignment, models, outliers, uncertainty, optimization, correlation, graphs, and peer review
  • Permafrost, salmon ecosystems, volcano monitoring, glacier mass balance, tidal energy, water quality, sea ice, watersheds, and field data

How to use this page

Complete one 10-question set at a time. Identify the evidence, connect it to the scientific model, and check whether the conclusion is supported by the data. Review each explanation after responding.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Alaska Department of Education and Early Development guidance, official assessment materials, accommodations, or testing schedules.

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

4. Test

Alaska Grade 10 Science Assessment Practice Questions

A 10-question Alaska Grade 10 Science Assessment practice set on scientific data and engineering design, with answers and explanations.

Read each scenario carefully, identify the evidence, choose one answer, and review the explanation after responding.

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

A researcher changes fertilizer type and measures plant biomass. What is the dependent variable?

Please select an answer first.

Correct answer: A

The correct answer is Plant biomass.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: The dependent variable is the response that is measured after changing the independent variable.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

The dependent variable is the response that is measured after changing the independent variable.

2. QuestionMultiple choice

Why is random assignment useful when placing subjects into treatment groups?

Please select an answer first.

Correct answer: B

The correct answer is It can reduce systematic differences between groups.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Random assignment helps distribute unknown differences across groups and strengthens comparisons.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Random assignment helps distribute unknown differences across groups and strengthens comparisons.

3. QuestionMultiple choice

What makes a controlled experiment different from an uncontrolled observation?

Please select an answer first.

Correct answer: C

The correct answer is The investigator deliberately changes a variable while controlling relevant conditions.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Controlled experiments manipulate an independent variable and manage other conditions to test a relationship.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Controlled experiments manipulate an independent variable and manage other conditions to test a relationship.

4. QuestionMultiple choice

What is a limitation of a computer simulation of an ecosystem?

Please select an answer first.

Correct answer: D

The correct answer is Its results depend on the assumptions and data built into the model.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: A simulation can be useful, but omitted processes or inaccurate assumptions can affect its results.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

A simulation can be useful, but omitted processes or inaccurate assumptions can affect its results.

5. QuestionMultiple choice

A data set contains 4, 5, 5, 6, and 25. Which measure is most affected by the outlier 25?

Please select an answer first.

Correct answer: A

The correct answer is The mean.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: The mean uses every value, so a very large outlier can pull it upward more than the mode.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

The mean uses every value, so a very large outlier can pull it upward more than the mode.

6. QuestionMultiple choice

A thermometer reads 12.4 degrees, but its uncertainty is plus or minus 0.2 degrees. What does this mean?

Please select an answer first.

Correct answer: B

The correct answer is The actual value is reasonably expected within a range near the reading.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Measurement uncertainty describes a reasonable range around the reported value due to instrument and method limits.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Measurement uncertainty describes a reasonable range around the reported value due to instrument and method limits.

7. QuestionMultiple choice

An engineer selects a bridge design that meets load requirements while using the least material. What goal is being addressed?

Please select an answer first.

Correct answer: C

The correct answer is Optimization under constraints.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Optimization seeks the best balance of performance and resource use while meeting constraints.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Optimization seeks the best balance of performance and resource use while meeting constraints.

8. QuestionMultiple choice

A strong correlation between two variables proves what?

Please select an answer first.

Correct answer: D

The correct answer is The variables change together in the observed data, but not necessarily that one causes the other.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Correlation shows an association, while causation requires additional evidence and an appropriate design.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Correlation shows an association, while causation requires additional evidence and an appropriate design.

9. QuestionMultiple choice

Which graph best displays how a measured response changes as a numerical factor increases?

Please select an answer first.

Correct answer: A

The correct answer is A scatter plot with a best-fit trend.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: A scatter plot shows paired numerical values and can reveal the direction and strength of a trend.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

A scatter plot shows paired numerical values and can reveal the direction and strength of a trend.

10. QuestionMultiple choice

Why can peer review improve a scientific investigation?

Please select an answer first.

Correct answer: B

The correct answer is Reviewers can identify unsupported claims, design weaknesses, or unclear analysis.

  1. Identify the evidence: Read the model, data, equation, or system described in the question.
  2. Apply the science idea: Independent review can expose errors and help improve the methods, evidence, and reasoning before wider use.
  3. Check the conclusion: Confirm that the answer is consistent with the evidence and the Grade 10 science concept.

Independent review can expose errors and help improve the methods, evidence, and reasoning before wider use.

Choose your next study path

Frequently asked questions about Alaska Grade 10 Science Assessment Practice Test

Which science skills are covered?

The page covers chemistry, energy, physics, biology, genetics, ecology, Earth systems, climate, engineering, data, and Alaska-related science applications.

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 Alaska assessment questions?

No. These are original supplemental practice questions. Check the latest Alaska Department of Education and Early Development information for official assessment dates, materials, accommodations, and policies.