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.