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Primary 5 Science

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  • What is a good conductor of heat?
    A good conductor of heat is one that allows heat to pass through easily.
  • What is a poor conductor of heat?
    A poor conductor of heat is one that does not allow heat to pass through easily.
  • What is boiling?
    Boiling is when liquid gains heat and turns into gas at boiling point.
  • What is pollination?
    Pollination is the transfer of pollen grains from the anther to the stigma.
  • What is an electrical insulator?
    Electrical insulator is one that does not allow current to pass through.
  • What is matter?
    Matter is anything that has mass and occupies space.
  • Why does more blood move towards the legs during running?
    To transport more oxygen and digested food to the leg muscles to release energy and to remove carbon dioxide.
  • What is melting?
    Melting is when solid gains heat and turns into liquid at melting point.
  • What is an electrical conductor?
    Electrical conductor is one that allows current to pass through.
  • What are the conditions required for germination?
    Water, Oxygen, Warmth
  • What are the 3 factors that affect the rate of evaporation?
    Temperature, Presence of Wind, Exposed surface area
  • What is fertilisation?
    Fertilisation is the fusion of male and female reproductive cells.
  • Seed dispersal is required to prevent overcrowding and to reduce competition for what?
    Sunlight, Water, Mineral Salts, Space
  • What is freezing?
    Freezing is when liquid loses heat and turns into solid at freezing point.
  • What is the difference between boiling and evaporation?
    Boiling occurs at boiling point while evaporation occurs at any temperature.
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