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Schemes of Work
QCA

Science at key stage 3    (Year 7)

Unit 7E: Acids and alkalis

QCA
About this unit

In this unit pupils:

  • learn about acids and alkalis as classes of chemicals with distinct properties and uses
  • use indicators to classify solutions as acidic, alkaline or neutral
  • use the pH scale to compare the acidity and alkalinity of different solutions
  • begin to explore neutralisation

In scientific enquiry pupils:

  • recognise hazards and use information sources to assess risks associated with acids and alkalis
  • make and present qualitative observations
  • interpret qualitative observations, making comparisons and identifying simple patterns
  • investigate the effectiveness of different antacids, controlling appropriate variables

This unit is expected to take approximately 7 hours.


Sections in this unit

This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.
1. a. What are acids and alkalis like and where do we use them?
2. b. What are acids and alkalis like and where do we use them?
3. How can acids and alkalis be identified and distinguished from each other?
4. Is there a range of acidity and alkalinity?
5. a. What happens when an acid is added to an alkali?
6. b. What happens when an acid is added to an alkali?
7. Checking progress
8. Where is neutralisation important?
9. Reviewing work