Acids and Alkalis *BIG PRACTICAL* Neutralisation

Resources developed as part of a *BIG PRACTICAL*. These are designed to practice a skill - usually using a preliminary investigation - then a full investigation write up. These are tailored toward the way the new GCSE (2016 on wards) is designed to test practical skills as well as context.

First lesson
Resources: The pH Scale (+ppt)
Practical: Test pH of everyday substances
Activities order: Starter looking at the pH scale and then practical, pupils then plot the position of the substances and then questions on strength of different substances.

Second
Resources: Neutralisation -- Titration (+ppt)
Practical: Basic titration like practical using measuring cylinders
Activities order: Introduction the meaning of the term 'neutral'. Re-cap of pH from previous lesson. Practical. Word equations looking at the formation of salts.

Third
Resources: Making-Salts-Prac (+ppt)
Practical: Forming sodium chloride salt and evaporating to form crystals
Activities order: Re-cap word equations. Practical and write up and use of heating equipment specifically looking at the importance of evaporation and mixing as processes involved in the method.