Grade 4 · Science · On Level
Free Science Review worksheet - version 9
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-UDNQ6K-102C
1.Why are food webs more realistic than single food chains?
2.What is the difference between weather and climate?
3.What type of boundary forms when plates move apart?
4.Why do seasons occur?
5.Which blood cells fight infection?
6.Which layer of Earth is liquid iron and nickel?
7.What cell structure contains genetic material?
8.How do greenhouse gases warm Earth?
9.What does conservation of energy mean?
10.What is density?
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 9
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- What type of boundary forms when plates move apart?Divergent boundary
- Why do seasons occur?Earth's tilt as it orbits the Sun
- Which blood cells fight infection?White blood cells
- Which layer of Earth is liquid iron and nickel?Outer core
- What cell structure contains genetic material?The nucleus
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- What is density?Mass per unit volume
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.