Study

Materials Year 5

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  • When something goes from solid to liquids, it...
    melts
  • What will happen to salt when it is mixed with water?
    It will dissolve.
  • What are the reactants in rusting?
    Water, Iron, Oxygen
  • Give an example of an irreversible process.
    ...
  • What is frozen water called?
    Ice
  • Are chemical reactions reversible or irreversible?
    Irreversible
  • What gas is made when you mix bicarbonate of soda with vinegar?
    Carbon Dioxide
  • How do we know when a chemical reaction has taken place?
    A new product is formed.
  • Is ironing clothes reversible or not?
    It is reversible
  • Give an example of a reversible process.
    ...
  • How can I recover salt from a saltwater solution?
    Evaporate the water so the salt is left behind.
  • My chocolate bar has turned to liquid! How can I make it solid again?
    Freeze it (make it colder)
  • Give an example of a chemical reaction.
    ...
  • What is the scientific formula for water?
    H2O
  • Give an example of a solvent.
    ...
  • Give an example of a solute.
    ...
  • What is the product in lighting a match?
    Ash
  • What do we call the point at which water turns to ice?
    Freezing point