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Air and gases
Facts about air and gas tests
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| A | B |
|---|
| makes up 21% of air | oxygen |
| makes up 0.04% of air | carbon dioxide |
| a poisonous odourless gas | carbon monoxide |
| relights a glowing spill | oxygen gas |
| when lit, it pops | hydrogen gas |
| turns limewater cloudy | carbon dioxide gas |
| turns limus paper red, then bleaches it | chlorine |
| radioactive gas | radon |
| protects us from uv radiation | ozone |
| sulfur dioxide | causes acid rain |
| methane & carbon doioxide | "greenhouse gases" |
| makes up 78% of the air | nitrogen |
| inert gas (2nd lightest element) | helium |
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