KidsAges 8-1115 questions

Science Quiz for Kids

This science quiz is made for children aged 8 to 11. It covers the planets, the human body, plants and animals, solids and liquids, magnets and forces, with questions that start easy and get a bit harder.

Read the questions and answers here, or host the quiz live in class or at home: show it on a big screen, let everyone join on a phone or tablet with a PIN, and see who is the best young scientist.

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The questions

  1. 1.Which organ pumps blood around your body?

    • AThe heart
    • BThe lungs
    • CThe brain
    • DThe stomach
    Show the answer

    The heart. Your heart is a strong muscle that beats all day and night to push blood around your body.

  2. 2.What gas do we need to breathe in to stay alive?

    • ACarbon dioxide
    • BHelium
    • COxygen
    • DSteam
    Show the answer

    Oxygen. Our lungs take oxygen from the air, and our blood carries it to every part of the body.

  3. 3.Which planet is closest to the Sun?

    • AVenus
    • BMercury
    • CEarth
    • DMars
    Show the answer

    Mercury. Mercury is the closest planet to the Sun and also the smallest planet in our solar system.

  4. 4.What is a young frog called?

    • AA cub
    • BA kitten
    • CA calf
    • DA tadpole
    Show the answer

    A tadpole. Frogs hatch from eggs as tadpoles, which live in water and slowly grow legs.

  5. 5.The Moon makes its own light.

    True or false?

    Show the answer

    False. The Moon has no light of its own. It shines because it reflects light from the Sun.

  6. 6.Which of these materials is attracted to a magnet?

    • AIron
    • BWood
    • CPlastic
    • DGlass
    Show the answer

    Iron. Iron is a magnetic metal. Wood, plastic and glass are not attracted to magnets.

  7. 7.What is the largest planet in our solar system?

    • ASaturn
    • BNeptune
    • CJupiter
    • DEarth
    Show the answer

    Jupiter. Jupiter is a giant ball of gas. More than 1,000 Earths could fit inside it.

  8. 8.What force pulls things down towards the ground?

    • AFriction
    • BMagnetism
    • CAir resistance
    • DGravity
    Show the answer

    Gravity. Gravity pulls everything towards the Earth. It is why a dropped ball falls down.

  9. 9.What is it called when a solid turns into a liquid?

    • AFreezing
    • BMelting
    • CEvaporating
    • DCondensing
    Show the answer

    Melting. When ice warms up, it melts into water. Freezing is the opposite.

  10. 10.Sound travels faster than light.

    True or false?

    Show the answer

    False. Light is much faster than sound. That is why you see lightning before you hear the thunder.

  11. 11.Which of these animals is a mammal?

    • AWhale
    • BShark
    • CSalmon
    • DOctopus
    Show the answer

    Whale. Whales breathe air and feed their babies on milk, so they are mammals, even though they live in the sea.

  12. 12.What do plants take in from the air to make their food?

    • AOxygen
    • BNitrogen
    • CSmoke
    • DCarbon dioxide
    Show the answer

    Carbon dioxide. Plants use sunlight, water and carbon dioxide to make food. This is called photosynthesis.

  13. 13.At what temperature does water boil at sea level?

    • A50 °C
    • B100 °C
    • C0 °C
    • D150 °C
    Show the answer

    100 °C. Water boils at 100 degrees Celsius at sea level. It freezes at 0 degrees Celsius.

  14. 14.What is it called when water vapour cools and turns back into liquid?

    • AEvaporation
    • BMelting
    • CCondensation
    • DDissolving
    Show the answer

    Condensation. Condensation is why drops form on a cold window or the outside of a cold glass.

  15. 15.How many bones are in an adult human body?

    • A206
    • B106
    • C300
    • D52
    Show the answer

    206. An adult has 206 bones. Babies are born with more, but some join together as they grow.

Play it live, everyone on their phones

Put the questions on a big screen, share the PIN, and the leaderboard keeps score. Change any question first — it becomes your own quiz.