• Physics
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  • Why does a pencil look bent when placed in water?
    Because light bends (refracts) when it passes from water to air, making the pencil look bent.
  • Give one example where our senses fool us in measurement.
    Feeling water as hot or cold with our skin (temperature feels different depending on conditions).
  • A book has a mass of 1.2 kg and a bag has a mass of 800 g. What is their total mass?
    2.0 kg
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