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Delaware State Assessments · DeSSA-Alt · Science · Grades 5, 8, and 10

Delaware DeSSA-Alt Science Practice Test

Build Delaware DeSSA-Alt Science readiness with five focused 10-question practice sets covering life science, Earth and space science, physical science, environment, data, investigations, and evidence.

Delaware DeSSA-Alt Science practice sets

This Delaware DeSSA-Alt Science Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets use clear language and practical contexts to review living systems, Earth and space, physical science, environmental systems, data, investigations, and evidence.

Skills covered

  • Life science: plants, animals, habitats, food chains, cells, inherited traits, pollination, decomposers, seeds, and adaptations
  • Earth and space science: evaporation, day and night, weather, erosion, Moon phases, rocks, seasons, renewable energy, maps, and clouds
  • Physical science: states of matter, forces, magnets, circuits, sound, thermal energy, chemical changes, mass, friction, and reflection
  • Environment and investigation: habitat loss, pollution, conservation, graphs, water use, food webs, observations, fair tests, models, and evidence
  • Integrated review: habitats, tools, measurement, solar energy, plant investigations, shadows, data, the water cycle, waste reduction, and pond evidence

How to use this page

Read one short science task at a time. Identify the observation or evidence, choose the best explanation, and review the solution after each response.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice. It does not replace current Delaware Department of Education, official DeSSA-Alt materials, accommodations, or testing policies.

For the Delaware assessment hub, visit Delaware State Assessments.

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4. Test

Delaware DeSSA-Alt Science Practice Questions

A 10-question Delaware DeSSA-Alt Science practice set on environment, data, and investigation, with answers and explanations.

Read each short science task 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

What can happen when a forest habitat is removed?

Please select an answer first.

Correct answer: A

The correct answer is Some animals may lose food or shelter..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Removing habitat can reduce the resources available to organisms.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Removing habitat can reduce the resources available to organisms.

2. QuestionMultiple choice

Which action can reduce water pollution?

Please select an answer first.

Correct answer: B

The correct answer is Keeping trash out of streams.

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Keeping trash away from waterways helps reduce pollution.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Keeping trash away from waterways helps reduce pollution.

3. QuestionMultiple choice

Which action helps conserve resources?

Please select an answer first.

Correct answer: C

The correct answer is Reusing a container.

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Reusing materials reduces the need for new resources and can reduce waste.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Reusing materials reduces the need for new resources and can reduce waste.

4. QuestionMultiple choice

A graph shows a fish population falling after a river becomes polluted. What is a reasonable conclusion?

Please select an answer first.

Correct answer: D

The correct answer is The pollution may have harmed the fish habitat..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: The timing and pattern support a possible connection between pollution and habitat conditions.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

The timing and pattern support a possible connection between pollution and habitat conditions.

5. QuestionMultiple choice

Which action saves water at home?

Please select an answer first.

Correct answer: A

The correct answer is Turning off the faucet while brushing teeth.

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Turning off the faucet prevents water from running when it is not needed.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Turning off the faucet prevents water from running when it is not needed.

6. QuestionMultiple choice

In a food web, what could happen if there are fewer plants?

Please select an answer first.

Correct answer: B

The correct answer is Plant-eating animals may have less food..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Herbivores depend on plants for food, so fewer plants can affect them.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Herbivores depend on plants for food, so fewer plants can affect them.

7. QuestionMultiple choice

Which is an observation?

Please select an answer first.

Correct answer: C

The correct answer is The liquid is blue and has a strong smell..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Color and smell are properties that can be directly observed.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Color and smell are properties that can be directly observed.

8. QuestionMultiple choice

A student tests two paper towels by using the same amount of water and the same size of towel. Why keep these conditions the same?

Please select an answer first.

Correct answer: D

The correct answer is To make the comparison fair.

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Keeping conditions the same helps isolate the factor being tested.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Keeping conditions the same helps isolate the factor being tested.

9. QuestionMultiple choice

Why do scientists use models?

Please select an answer first.

Correct answer: A

The correct answer is Models can represent things that are difficult to observe directly..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: A model helps show structure, processes, or relationships that may be hard to see directly.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

A model helps show structure, processes, or relationships that may be hard to see directly.

10. QuestionMultiple choice

Which evidence best supports a claim that shade cools a playground?

Please select an answer first.

Correct answer: B

The correct answer is Temperature readings are lower in shaded areas than in sunny areas at the same time..

  1. Read the science task: Look for the observation, object, living thing, weather condition, material, or data pattern in the question.
  2. Use the evidence: Comparable temperature readings directly test the effect of shade.
  3. Check the response: Choose the answer best supported by the Delaware DeSSA-Alt Science practice task.

Comparable temperature readings directly test the effect of shade.

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Frequently asked questions about Delaware DeSSA-Alt Science Practice

Which grades are covered?

This page provides accessible Science practice across the Delaware DeSSA-Alt grade ranges listed for Grades 5, 8, and high school science.

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 DeSSA-Alt questions?

No. These are original supplemental practice questions. Check the latest Delaware Department of Education and official DeSSA-Alt information for current materials, accommodations, and policies.