1. This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals Finding the pH of household products Subject:Science Age group:12–14 Topic:Chemistry practical EAL Nexus resource Licence information | This resource is free to use for educational purposes. © British Council 2015 Source | This resource was originally developed by Ruth Wilson and Remy Mal for Wolverhampton Local Authority and Heath Park Business and Enterprise College and has been adapted by EAL Nexus.

2. We wanted to find out if …

3. … things we use in the house are acid or alkaline. cooking oil oven cleaner toothpaste disinfectant washing-up liquid liquid soap vinegar shampoo

4. We poured 25ml of disinfectant into a beaker.

5. We added five drops of universal indicator to the liquid.

6. We stirred the liquid.

7. We observed the colour change.

8. We decided whether the substance is an acid or an alkali. acidalkalineutral stronger acidstronger alkali

9. We repeated the process with the other substances.

10. We recorded our results in a table. SubstanceColourAcid or alkali

11. We found out that ____________________ is acid/alkali.

12. We found out that ______________ is a stronger acid/alkali than _____________. We found out that ______________ is a weaker acid/alkali than _____________. ____________ is the strongest acid/alkali of all.

13. We found out that __________ is than of ___________. all. stronger weaker a strongest weakest thealkali acid

14. Useful connectives: First of all we … Then we … We then … After that … Next … Finally …