Grade 5 · Science · Challenge
Free Science Review worksheet - version 16
Grade 5 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 5 · Stretch challenge · 10 questions · Version PG-XYX0WZ-178N
Why do seasons occur?
Which layer of Earth is liquid iron and nickel?
How do greenhouse gases warm Earth?
Which blood cells fight infection?
What is density?
What does conservation of energy mean?
What is the role of chlorophyll?
Why are food webs more realistic than single food chains?
What cell structure contains genetic material?
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 16
- Why do seasons occur?Earth's tilt as it orbits the Sun
- Which layer of Earth is liquid iron and nickel?Outer core
- How do greenhouse gases warm Earth?They absorb and re-emit infrared energy
- Which blood cells fight infection?White blood cells
- What is density?Mass per unit volume
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- What is the role of chlorophyll?Absorb light for photosynthesis
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- What cell structure contains genetic material?The nucleus
- 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.