Grade 3Sciencequiz16 questions

Light and shadows

Grade 3: light sources, shadows, transparent and opaque, reflection.

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Free to play. Teams answer on one screen; your phone is the remote. No student devices.

Questions

  1. Which of these makes its own light?

    • A book
    • A mirror
    • The Moon
    • The Sun
    Show answerThe Sun

  2. Which of these is NOT a light source?

    • A candle
    • A lamp
    • A pencil
    • A torch
    Show answerA pencil

  3. The Moon makes its own light. (True or false?)

    Show answerFalse

  4. What is the main natural light source in our daytime sky?

    • A cloud
    • A rainbow
    • The Moon
    • The Sun
    Show answerThe Sun

  5. What is needed to make a shadow?

    • Light and an object that blocks it
    • Only a dark room
    • Only a mirror
    • Water and a lamp
    Show answerLight and an object that blocks it

  6. When is your shadow usually longest during a sunny day?

    • At noon
    • Early morning or late afternoon
    • It is always the same
    • Only at night
    Show answerEarly morning or late afternoon

  7. A shadow forms on the side of an object that is away from the light. (True or false?)

    Show answerTrue

  8. What happens to a toy's shadow when you move the torch closer to the toy? (Answer out loud)

    Show answerIt gets bigger

  9. Which material is transparent?

    • Cardboard
    • Clear glass
    • Metal
    • Wood
    Show answerClear glass

  10. Which type of material blocks almost all light and makes a dark shadow?

    • Clear
    • Opaque
    • Shiny
    • Transparent
    Show answerOpaque

  11. Wax paper lets some light through, but you can't see clearly through it. What is it called? (Answer out loud)

    Show answerTranslucent

  12. What do we call light bouncing off a surface?

    • Absorption
    • Evaporation
    • Melting
    • Reflection
    Show answerReflection

  13. Which surface reflects light best?

    • A black cloth
    • A mirror
    • A rough stone
    • A woolly blanket
    Show answerA mirror

  14. We can see a book because light bounces off it into our eyes. (True or false?)

    Show answerTrue

  15. What do you see when you look at yourself in a mirror? (Answer out loud)

    Show answerYour reflection

  16. Why do bicycles often have shiny reflectors on them?

    • They bounce light back so drivers see them
    • They keep the bike cool
    • They make the bike faster
    • They make their own light
    Show answerThey bounce light back so drivers see them

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