Grade 4 · Science · On Level
Free Science Review worksheet - version 16
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-1J0TB4M-102C
1.Why do seasons occur?
2.What cell structure contains genetic material?
3.Why are food webs more realistic than single food chains?
4.What is the role of chlorophyll?
5.Which blood cells fight infection?
6.Which layer of Earth is liquid iron and nickel?
7.What evidence shows a chemical reaction occurred?
8.What type of boundary forms when plates move apart?
9.What is the difference between weather and climate?
10.How do greenhouse gases warm Earth?
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 16
- Why do seasons occur?Earth's tilt as it orbits the Sun
- What cell structure contains genetic material?The nucleus
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What is the role of chlorophyll?Absorb light for photosynthesis
- Which blood cells fight infection?White blood cells
- Which layer of Earth is liquid iron and nickel?Outer core
- What evidence shows a chemical reaction occurred?New substances form
- What type of boundary forms when plates move apart?Divergent boundary
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
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.