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Show on a big screenA lemon wedge on chaat. A bucket of soapy water. One paper strip can sort them.
This is Chapter 2, Exploring Substances: Acidic, Basic, and Neutral.
What you will learn
- Every substance is acidic, basic or neutral.
- A paper strip called an indicator shows the group by changing colour.
- Litmus, turmeric and red rose are indicators.
- An acid and a base cancel each other. This is neutralisation.
- Plant extracts and even a smell can be indicators.
- Neutralisation helps acidic soil and acidic factory waste.
Need a quick recap?
- Does it dissolve? Most tests here use a substance mixed in water.
Stay safe
Nobody here tastes, touches or smells anything. Every jar and every strip is on the screen.