KS3 ~ Year 7 ~ Acids & Alkalis

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 C4 ’Acids & Alkalis’.

For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience.

Students will firstly compare some examples of acids to alkalis, including a description of the feel and taste of some acidic and alkaline substances. Next, students will read some information about acids and alkalis on an information sheet. Using this information they will answer a set of questions in their books, this work can then be self-assessed using the mark scheme provided on the PowerPoint.

Next, students are introduced to Hazard symbols - these will be important within the topics of acids and alkalis for students to determine how hazardous different chemicals might be. Students will play a game of ‘Haz-Splat’ whereby they will be given a choice of two different Hazard Symbols. They will need to come up to the board in pairs, the name of the hazard symbol is read out and students will try to ‘splat’ the correct hazard symbol before their opponent! This activity will familiarise students with the following hazards - irritant, corrosive, flammable & toxic.

Next, students will be introduced to the idea of a concentrated or dilute acid, as well as the definition for concentration. Students will then work their way through a set of activities to assess their knowledge of concentration, this work can be self-assessed using the mark schemes provided.

Lastly, students are shown how to calculate the concentration of a solution given the mass of solute and the volume of the solution. Students will need to use this calculation to work through a set of problems, this task can also be marked and corrected using the answers provided on the PowerPoint.

The plenary task requires students to spend a minute or two talking about what they have learned during the lesson.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)