Grade 4 · Science · Challenge
Free Science Review worksheet - version 6
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 · Stretch challenge · 10 questions · Version PG-12466GD-DBMY
Why do seasons occur?
What evidence shows a chemical reaction occurred?
What is the role of chlorophyll?
What is the pH of a neutral solution?
What does conservation of energy mean?
Which blood cells fight infection?
Which layer of Earth is liquid iron and nickel?
What is density?
What cell structure contains genetic material?
Why are food webs more realistic than single food chains?
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
- Why do seasons occur?Earth's tilt as it orbits the Sun
- What evidence shows a chemical reaction occurred?New substances form
- What is the role of chlorophyll?Absorb light for photosynthesis
- What is the pH of a neutral solution?7
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- Which blood cells fight infection?White blood cells
- Which layer of Earth is liquid iron and nickel?Outer core
- What is density?Mass per unit volume
- 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
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.