Difference between revisions of "Chemical Change"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | A '''chemical change''' is a change that results in new [[ | + | A '''chemical change''' is a change that results in new [[chemical]]s being formed. |
===About Chemical Changes=== | ===About Chemical Changes=== | ||
: '''Chemical changes''' are usually [[irreversible]]. However, some can be [[reversible|reversed]]. | : '''Chemical changes''' are usually [[irreversible]]. However, some can be [[reversible|reversed]]. | ||
| − | : | + | : '''Chemical changes''' [[product|produce]] new [[chemical]]s which have different [[Physical Property|physical]] and [[Chemical Property|chemical properties]] from the [[reactant]]s. |
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| + | ===Examples=== | ||
| + | : Cooking food involves several '''chemical changes'''. Baking a cake and toasting bread causes [[Chemical Reaction|chemical reaction]]s that are used to change the texture and flavour of the food. | ||
Revision as of 10:16, 21 December 2018
Key Stage 3
Meaning
A chemical change is a change that results in new chemicals being formed.
About Chemical Changes
- Chemical changes are usually irreversible. However, some can be reversed.
- Chemical changes produce new chemicals which have different physical and chemical properties from the reactants.
Examples
- Cooking food involves several chemical changes. Baking a cake and toasting bread causes chemical reactions that are used to change the texture and flavour of the food.