Grade 4 · Science · On Level
Free Science Review worksheet - version 3
Grade 4 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 4 · On-level practice · 10 questions · Version PG-X5JR4A-102C
1.Which layer of Earth is liquid iron and nickel?
2.What evidence shows a chemical reaction occurred?
3.Why are food webs more realistic than single food chains?
4.What type of boundary forms when plates move apart?
5.What is the role of chlorophyll?
6.What does conservation of energy mean?
7.State Newton's third-law force pair when swimming.
8.What is the difference between weather and climate?
9.Why do seasons occur?
10.Which blood cells fight infection?
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 3
- Which layer of Earth is liquid iron and nickel?Outer core
- What evidence shows a chemical reaction occurred?New substances form
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What type of boundary forms when plates move apart?Divergent boundary
- What is the role of chlorophyll?Absorb light for photosynthesis
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- 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
- Which blood cells fight infection?White blood cells
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.