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🔬 Science, Years 4 to 6

Years 4 to 6 · Read up first

10 questions. Get 8 right to earn 10 minutes. All 10 right = +5 bonus. They start easy and get harder as you go, so treat the first few as a warm-up. Every one you miss comes back with the answer and why.

1. Which of these is a solid?

AirJuiceSteamIce

2. Roughly how many bones does an adult human skeleton have?

About 1,000About 206About 50About 500

3. Which is the correct order for a frog's life cycle?

Froglet, egg, tadpole, frogEgg, frog, tadpole, frogletTadpole, egg, frog, frogletEgg, tadpole, froglet, adult frog

4. What force slows down a bike when the brakes are pressed?

MomentumFrictionGravityMagnetism

5. Sound travels to our ears as what?

A kind of gasLight wavesA pulling forceVibrations through the air

6. What does a switch do in an electric circuit?

Opens or closes the loop to stop or start the flowMakes the battery strongerStores extra electricityChanges electricity into light directly

7. What is photosynthesis?

The way plants use sunlight, water and carbon dioxide to make their own foodThe way plants breathe out waterThe way plants take in food through their roots onlyThe way plants make seeds

8. Which state of matter has a fixed shape and a fixed volume?

GasLiquidAll threeSolid

9. Ice, water and steam are all the same substance in different states. What happens to the water particles as ice melts into water?

They lose massThey turn into a different substanceThey stop moving completelyThey gain energy and move around more freely

10. Water expands when it freezes, unlike most substances, which shrink. Why does this matter for a sealed glass bottle left in a freezer?

The expanding ice can crack or burst the bottleNothing happens differentlyThe glass will meltThe bottle will float away

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