Baking Soda & Vinegar Volcano
Objective: Observe a chemical reaction; distinguish products from reactants.
- Place the container on the tray. Add 2 tsp baking soda and 3 drops of red food colouring.
- Ask: 'Predict what will happen when I pour vinegar in.' Write predictions.
- Pour vinegar slowly. Observe and describe: fizzing, bubbling, temperature change.
- Identify reactants (baking soda + vinegar) and products (CO₂ gas + water + sodium acetate).
- Debrief: Where did the gas go? Is this a physical or chemical change? Why?
