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UKA Grade 7 Science

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  • What state of matter?
    Gas
  • Can a solid compress?
    No, it can't
  • When you heat something do the particles move slower or faster?
    Faster
  • What are materials made up of?
    Tiny particles
  • When a gas is heated what happens to pressure?
    It increases
  • How many materials make up a substance?
    One (It is pure)
  • At room temperature what state is mercury
    Liquid
  • At room temperature what state is H2O
    Liquid
  • What temperature is the freezing point for water?
    Zero degrees celcius
  • At room temperature what state is neon
    Gas
  • Changing state - Solid to Liquid
    Melting
  • Can you compress a gas?
    Yes, you can.
  • When you freeze something do the particles move slower or faster?
    Slower
  • At room temperature what state is milk
    liquid
  • What temperature is boiling point for water?
    100 degrees celcius
  • Changing state - Liquid to Solid
    Freezing
  • Changing state - Liquid to Gas
    Evaporation
  • At room temperature what state is copper
    Solid
  • What 3 factors affect diffusion speed
    Temperature, Particles size and the state of the substance
  • Is wood a mixture or a substance?
    Mixture
  • What state of matter?
    Solid
  • Is milk a mixture or a substance?
    Mixture
  • What state of matter?
    Liquid
  • Can a liquid flow?
    Yes it can.
  • Is gold a mixture or a substance?
    Substance
  • Changing state - Gas to Liquid
    Condensation
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