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Gases
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What gas do we breathe in?
Oxygen
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What gas is very light?
All of them.
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Explain why gas particles move very fast
They have loads of space between them and no bonds
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What gas do we breathe out?
Carbon Dioxide
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Why do balloons filled with carbon dioxide fall to the ground?
Carbon Dioxide is a heavy gas
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Carbon Dioxide turns limewater....
milky (cloudy)
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What gas is used in crisp bags to keep them fresh?
Nitrogen
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Why do we have to be careful with Hydrogen?
It is explosive
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What does Carbon Dioxide do to fizzy drinks?
It makes the bubbles
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What gas makes up the most of our air?
Nitrogen?
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Between a solid, liquid and gas which has the strongest bonds?
Solid
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What gas is needed for life?
Oxygen
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How many gases is our air made up of?
4
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Which can be easily squashed?
gas
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