Difference between revisions of "Combustion"
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| + | ==Key Stage 2== | ||
| + | ===Meaning=== | ||
| + | '''Burning''' is a chemical reaction that happens when something catches fire. | ||
| + | |||
| + | ===About Burning=== | ||
| + | : Materials can only '''burn''' if there is enough air. | ||
| + | : Substances cannot '''burn''' underwater or in empty space. | ||
| + | : Anything that '''burns''' is called a [[fuel]]. | ||
| + | |||
| + | ===Examples=== | ||
| + | |||
| + | |||
| + | ===Note to Teachers=== | ||
| + | Students often don't recognise the difference between heating and burning. When asked what happens to a substance when it is heated they will say 'burn' when melting would be a more appropriate response. Students also do not always recognise the necessity of oxygen (or at least air) when things burn. | ||
| + | ==Key Stage 3== | ||
| + | |||
When a [[chemical]] burns in the presence of [[oxygen]]. | When a [[chemical]] burns in the presence of [[oxygen]]. | ||
Revision as of 10:08, 31 August 2018
Contents
Key Stage 2
Meaning
Burning is a chemical reaction that happens when something catches fire.
About Burning
- Materials can only burn if there is enough air.
- Substances cannot burn underwater or in empty space.
- Anything that burns is called a fuel.
Examples
Note to Teachers
Students often don't recognise the difference between heating and burning. When asked what happens to a substance when it is heated they will say 'burn' when melting would be a more appropriate response. Students also do not always recognise the necessity of oxygen (or at least air) when things burn.