Grade 4 · Science · Challenge
Free Science Review worksheet - version 8
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-Y8BQQR-DBMY
1.What is the role of chlorophyll?
2.Which blood cells fight infection?
3.What is the difference between weather and climate?
4.Why are food webs more realistic than single food chains?
5.What is the pH of a neutral solution?
6.How do greenhouse gases warm Earth?
7.What type of boundary forms when plates move apart?
8.What does conservation of energy mean?
9.Why does salt lower water's freezing point?
10.What transfers traits from parents to offspring?
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 8
- What is the role of chlorophyll?Absorb light for photosynthesis
- Which blood cells fight infection?White blood cells
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What is the pH of a neutral solution?7
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- What type of boundary forms when plates move apart?Divergent boundary
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- Why does salt lower water's freezing point?It disrupts ice crystal formation
- What transfers traits from parents to offspring?Genes
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.