Grade 4 · Science · Challenge
Free Science Review worksheet - version 20
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-1IWYC5F-DBMY
1.What is the difference between weather and climate?
2.What evidence shows a chemical reaction occurred?
3.What cell structure contains genetic material?
4.State Newton's third-law force pair when swimming.
5.What type of boundary forms when plates move apart?
6.How do greenhouse gases warm Earth?
7.What is density?
8.What is the role of chlorophyll?
9.Why does salt lower water's freezing point?
10.Which layer of Earth is liquid iron and nickel?
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 20
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- What evidence shows a chemical reaction occurred?New substances form
- What cell structure contains genetic material?The nucleus
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- What type of boundary forms when plates move apart?Divergent boundary
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- What is density?Mass per unit volume
- What is the role of chlorophyll?Absorb light for photosynthesis
- Why does salt lower water's freezing point?It disrupts ice crystal formation
- Which layer of Earth is liquid iron and nickel?Outer core
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.