Indicators from the lab and from the market
General Science · Grade 10 · about 40 minutes
Litmus, universal indicator, phenolphthalein and hibiscus juice all report acid or alkali; only universal indicator gives a pH number.
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- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Acids, bases and what they do
- Salts: types, behaviour and uses
- Indicators from the lab and from the market
- Strong, weak, concentrated and dilute
- Acids in digestion, blood and teeth
- Bases on the farm and on a sting
- Neutralisation in the lab: salt plus water
- Acid with carbonates and with metals
- Naming salts and the types of salt
- Making copper sulphate crystals
- Precipitation of insoluble salts
- Salts in air, in Kenya and in the environment