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Materials Year 5
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How can I recover salt from a saltwater solution?
Evaporate the water so the salt is left behind.
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Which word describes how molecules spread out in a gas or liquid (like smell particles!)?
diffusion
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Is dried lava reversible or not
it is reversible
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What happens when steam meets a cold surface?
Condensation
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Which word describes how easily gas or liquid can pass through something?
Permeability
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How could I remove fine sand from water?
Use filter paper.
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What is the scientific formula for water?
H2O
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What gas is made when you mix bicarbonate of soda with vinegar?
Carbon Dioxide
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When I put a gummi bear in water it grows because water can get in but sugar can't get out. What word describes the water moving in?
Osmosis
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How could I separate sand from stones?
Use a sieve.
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What is frozen water called?
Ice
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How do you protect a metal from rusting? (Answer begins with G)
Galvanising
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When something goes from solid to liquids, it...
melts
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My chocolate bar has turned to liquid! How can I make it solid again?
Freeze it (make it colder)
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What will happen to salt when it is mixed with water?
It will dissolve.
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