Grade 4 · Science · On Level
Free Science Review worksheet - version 7
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-W1LCCE-102C
1.What is density?
2.How do greenhouse gases warm Earth?
3.Why does salt lower water's freezing point?
4.State Newton's third-law force pair when swimming.
5.What type of boundary forms when plates move apart?
6.What is the difference between weather and climate?
7.Why are food webs more realistic than single food chains?
8.What is the role of chlorophyll?
9.Which layer of Earth is liquid iron and nickel?
10.What is the pH of a neutral solution?
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 7
- What is density?Mass per unit volume
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- Why does salt lower water's freezing point?It disrupts ice crystal formation
- 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
- 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 role of chlorophyll?Absorb light for photosynthesis
- Which layer of Earth is liquid iron and nickel?Outer core
- What is the pH of a neutral solution?7
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.