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GCSE Chemistry · key term
A substance that catches fire and burns readily.
Used by AQA and Edexcel
Specification 4.8.2.1 · Paper 2
Revise: Test for HydrogenHydrogen is a colourless, flammable gas, so its appearance alone does not identify it. Instead, it is tested using a characteristic chemical reaction. This is a qualitative test: the observation tells you whether hydrogen is present, rather than measuring its amount.
Specification 0.5 · Paper 1, Paper 2
Able to catch fire easily.
Revise: Hazard SymbolsThe flame indicates a flammable substance: it catches fire easily. Alcohols, methylated spirits and petrol are examples. This warning tells you to keep the substance away from naked flames and other ignition sources.
Name the danger shown by the symbol, then link it to a relevant action. For example: “Flammable, so keep it away from naked flames and other ignition sources.”
Do not confuse flammable with oxidising: a flammable substance catches fire easily, whereas an oxidising substance can make a fire burn more fiercely.
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