Grade 3 · Science · Challenge
Free Science Review worksheet - version 6
Grade 3 science review matched to the learner's current level. This printable version includes 10 grade-appropriate questions and a separate answer sheet.
Science Review
Grade 3 · Stretch challenge · 10 questions · Version PG-1WI9H2K-1LFG
1.What is the pH of a neutral solution?
2.What is density?
3.Which layer of Earth is liquid iron and nickel?
4.Why are food webs more realistic than single food chains?
5.What transfers traits from parents to offspring?
6.What is the difference between weather and climate?
7.Why do seasons occur?
8.What type of boundary forms when plates move apart?
9.State Newton's third-law force pair when swimming.
10.Why does salt lower water's freezing point?
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 6
- What is the pH of a neutral solution?7
- What is density?Mass per unit volume
- Which layer of Earth is liquid iron and nickel?Outer core
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What transfers traits from parents to offspring?Genes
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- Why do seasons occur?Earth's tilt as it orbits the Sun
- What type of boundary forms when plates move apart?Divergent boundary
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- Why does salt lower water's freezing point?It disrupts ice crystal formation
Worked example
Connect the question to an observable process or scientific model.
Common mistake
Selecting a familiar term without checking its meaning.
Helpful hint
Explain why your answer makes sense.