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Archive · October 29, 2026

Grade 3 Science: 10 Free Practice Questions

A brand-new set of Grade 3 science practice questions every single day, with the answer and a full explanation for each one. No account, no paywall — tap an answer to check it.

1A dropped rubber ball bounces several times, getting lower each time, before it finally rolls to a stop. What force is MOST responsible for it eventually stopping?

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Answer: Friction and air resistance gradually removing its energy of motion
Friction with the ground and air resistance steadily take away the ball's motion energy until it stops.

2Which of the following is an example of a solid?

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Answer: A wooden block
A wooden block is a solid because it has a fixed shape and volume that does not change unless it is broken or cut. Solids keep their own shape and do not flow. Juice takes the shape of its cup (liquid), steam spreads out to fill space (gas), and air in a balloon fills the balloon's shape (gas). A wooden block keeps its own shape no matter what container it is placed in, so it is a solid. Students sometimes think anything hard to see through, like steam, must be a solid because it looks 'thick,' confusing appearance with the properties of shape and volume.

3A polar bear has thick white fur. What is the most likely purpose of this adaptation?

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Answer: camouflage and insulation in a snowy, cold habitat
This physical feature primarily helps the animal or plant with camouflage and insulation in a snowy, cold habitat.

4Pushing a swing forward is an example of which type of force?

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Answer: push
Pushing a swing forward is an example of a push, because the force moves the object away from the person applying it.

5Which of the following is an example of generating possible solutions to a problem?

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Answer: Brainstorming several different ways to build a stronger paper bridge
Brainstorming multiple approaches to a problem is the step in which possible solutions are generated before any single idea is selected and built.

6Which of the following statements is TRUE?

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Answer: Pushing a shopping cart is an example of a push.
The true statement is supported by established science content: "Pushing a shopping cart is an example of a push." The other statements contain inaccuracies.

7Which statement below is accurate?

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Answer: In the food chain sun → grass → grasshopper → frog → snake, the grass is the producer.
The accurate statement is: "In the food chain sun → grass → grasshopper → frog → snake, the grass is the producer." The remaining statements each contain an inaccuracy.

8Which animal or plant feature is described here: a very long neck? This feature primarily helps with reaching leaves high in trees that other animals cannot reach.

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Answer: A giraffe has a very long neck
This feature is found on the animal or plant described, and it helps with reaching leaves high in trees that other animals cannot reach.

9Which layer of Earth do we live on?

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Answer: the crust
The crust is Earth's thin outer layer.

10Which animal or organism is best adapted to survive in a grassland habitat?

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Answer: zebra
The zebra has adaptations suited for the grassland, unlike the other choices, which are adapted to different environments.

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