1. This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals Reactants and products Subject:Science Age group(s):8-11, 12-14 Topic:Chemical reactions EAL Nexus resource Licence information | This resource is free to use for educational purposes. © British Council 2014 Source | This resource was originally developed by Alison Fisher and has been adapted by EAL Nexus.

2. What are the reactants and what is the product? ReactantsProduct

3. How do you know a chemical reaction has taken place? the colour gas the egg Think about: Gas is produced and makes bubbles. The colour has changed The protein in the egg becomes firmer when it is cooked.

4. How do you know which are the reactants? When do you use them? What happens to them? Think about: They react with each other to make something new They are used at the beginning of a chemical reaction

5. How would you write an equation for making a cake? Discuss with your partner. You will need to use all these words and symbols. + eggs flour sugar cake butter + +

6. Which are the reactants and products? Spend a few minutes underlining the reactants or products on your sheet When you are ready, compare your answers with your partner and discuss what you have written Phrases you could use: I think it’s the reactant/product because… It’s the reactant/product because…. It must be the reactant / product because…

7. Which are the reactants? 1.Haseeb took methane and burnt it in oxygen. This produced carbon dioxide and water. 2.Iron sulphate is formed when iron is added to sulphuric acid. Hydrogen gas is also given off. 3.Pupils found that sodium chloride and water were formed when sodium hydroxide was added to hydrochloric acid. 4. If you add nitric acid to sodium carbonate they will react together and produce sodium nitrate, carbon dioxide and water.

8. Which are the reactants?

9. Which are the products? 1.Haseeb took methane and burnt it in oxygen. This produced carbon dioxide and water. 2.Iron sulphate is formed when iron is added to sulphuric acid. Hydrogen gas is also given off. 3.Pupils found that sodium chloride and water were formed when sodium hydroxide was added to hydrochloric acid. 4. If you add nitric acid to sodium carbonate they will react together and produce sodium nitrate, carbon dioxide and water.

10. Which are the products? carbon dioxide water 1.Haseeb took methane and burnt it in oxygen. This produced carbon dioxide and water. 2.Iron sulphate Hydrogen gas 2.Iron sulphate is formed when iron is added to sulphuric acid. Hydrogen gas is also given off. sodium chloride water 3.Pupils found that sodium chloride and water were formed when sodium hydroxide was added to hydrochloric acid. sodium nitratecarbon dioxide water 4. If you add nitric acid to sodium carbonate they will react together and produce sodium nitrate, carbon dioxide and water.

11. Have you written the correct equations? 1.methane + oxygen  carbon dioxide + water 2. iron + sulphuric acid  iron sulphate + hydrogen 3. sodium hydroxide + hydrochloric acid  sodium chloride + water 4. nitric acid + sodium carbonate  sodium nitrate + carbon dioxide + water.