Grade 4 · Science · Challenge
Free Science Review worksheet - version 13
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-O3WZNL-DBMY
What is the pH of a neutral solution?
State Newton's third-law force pair when swimming.
How do greenhouse gases warm Earth?
Why do seasons occur?
What cell structure contains genetic material?
Which layer of Earth is liquid iron and nickel?
Which blood cells fight infection?
What evidence shows a chemical reaction occurred?
What is density?
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 13
- What is the pH of a neutral solution?7
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- Why do seasons occur?Earth's tilt as it orbits the Sun
- What cell structure contains genetic material?The nucleus
- Which layer of Earth is liquid iron and nickel?Outer core
- Which blood cells fight infection?White blood cells
- What evidence shows a chemical reaction occurred?New substances form
- What is density?Mass per unit volume
- 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.