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Light and shadows

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  • Is a wall opaque or transparent?
    Opaque
  • Look at the picture. Why does the tree make a shadow?
    The tree is opaque and it blocks the light.
  • Our shadows disappear when we move. (true or false)
    true
    false
  • If we hold a book in the torchlight, we will see a SHADOW OF A PENCIL on the paper.
    true
    false
  • Is a glass transparent or opaque?
    transparent
  • Find 2 transparent objects around you.
    NOICE
  • shadows can have colors (true or false)
    false
    true
  • What makes a shadow?
    Something blocks the light
  • Mention 5 sources of light!
    Sun, lamp, candle, torch, stars
  • Is the moon a light source?
    No, it isn't
  • a ... is formed when the light is blocked by an object.
    shadow
  • Find 2 opaque objects around you.
    good job!
  • It is daytime and you look behind you. You see your shadow. Now it is nighttime and when you look behind yourself you DON'T see your shadow. Why?
    You need a light source to see a shadow.
  • All light come from a light source. (true or false)
    true
    false
  • Why we can not see in the dark?
    Because there is no light
  • A torch is a light source. (true or false)
    true
    false
  • What is our main source of light?
    Sun
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