Grade 4 · Science · On Level
Free Science Review worksheet - version 1
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-WLKJQC-102C
How do greenhouse gases warm Earth?
Which layer of Earth is liquid iron and nickel?
Why are food webs more realistic than single food chains?
What cell structure contains genetic material?
What is the difference between weather and climate?
What transfers traits from parents to offspring?
What is the role of chlorophyll?
Why does salt lower water's freezing point?
State Newton's third-law force pair when swimming.
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 1
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- 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 cell structure contains genetic material?The nucleus
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- What transfers traits from parents to offspring?Genes
- What is the role of chlorophyll?Absorb light for photosynthesis
- Why does salt lower water's freezing point?It disrupts ice crystal formation
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- 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.