XLTestPrep

Daily Practice › Grade 3 Science › October 31, 2026

Archive · October 31, 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.

1Which statement below is accurate?

Show answer & explanation
Answer: A ruler is used to measure length.
The accurate statement is: "A ruler is used to measure length." The remaining statements each contain an inaccuracy.

2Which statement best describes how sedimentary rock forms?

Show answer & explanation
Answer: forms when layers of sediment are pressed and cemented together over time
Sedimentary rock forms when layers of sediment are pressed and cemented together over time.

3Which animal or plant feature is described here: thick white fur? This feature primarily helps with camouflage and insulation in a snowy, cold habitat.

Show answer & explanation
Answer: A polar bear has thick white fur
This feature is found on the animal or plant described, and it helps with camouflage and insulation in a snowy, cold habitat.

4Which of the following statements is TRUE?

Show answer & explanation
Answer: An ice cube left on a counter turns into a puddle of water. This process is called melting.
The true statement is supported by established science content: "An ice cube left on a counter turns into a puddle of water. This process is called melting." The other statements contain inaccuracies.

5A rock sample formed from compressed layers of sediment over time. What type of rock is this most likely classified as?

Show answer & explanation
Answer: sedimentary
This description matches sedimentary rock, which forms when layers of sediment are pressed and cemented together over time.

6Which stage is the final stage in the life cycle of a ladybug shown here, before the cycle repeats?

Show answer & explanation
Answer: adult ladybug
The life cycle of a ladybug concludes with the "adult ladybug" stage, at which point it can reproduce and begin the cycle again.

7A student needs a tool to make small objects appear larger. Which tool should the student use?

Show answer & explanation
Answer: magnifying glass
A magnifying glass is specifically designed to make small objects appear larger.

8Which statement below is accurate?

Show answer & explanation
Answer: Pushing a shopping cart is an example of a push.
The accurate statement is: "Pushing a shopping cart is an example of a push." The remaining statements each contain an inaccuracy.

9Which of these best explains why oceans are important to the water cycle?

Show answer & explanation
Answer: They hold most of Earth's water and are a major source of evaporation
Oceans contain most of Earth's water and provide a large surface area where evaporation occurs, supplying much of the water vapor that drives the water cycle.

10Which animal behavior describes an animal, such as a bear, entering a deep sleep-like state for the winter instead of leaving the area?

Show answer & explanation
Answer: Hibernation
Hibernation is a state of reduced activity and lowered body processes that allows an animal to survive winter without traveling elsewhere or needing much food.

More Grade 3 practice today

Math 1,857 questions in the bank English Language Arts 907 questions in the bank Cognitive Skills (CogAT) 1,180 questions in the bank

Previous days