Chemical Changes
Science: Year 5 & 6 National Curriculum, topic 3.2.4
Chemical Changes
Chemical changes are changes in materials that cannot usually be reversed.
Burning paper
- Burning paper in the air is a chemical change.
- Burning paper cannot be reversed.
Rusting nails
- Rusting nails is a chemical change.
- Rusting nails cannot be reversed.
Vinegar with bicarbonate of soda
- A reaction will happen when you mix vinegar with bicarbonate of soda.
- You will see bubbles around the bicarbonate of soda.
- The bicarbonate of soda will dissolve.
- The reaction between vinegar and bicarbonate of soda cannot be reversed.
Test yourself on Chemical Changes
What is correct about chemical reactions?
What kind of reaction is burning something in the air?
What is correct about the reaction between vinegar and bicarbonate of soda?