1) Blue litmus paper changes colour to red. a) Acidic Substance b) Alkali Substance c) Neutral Substance 2) Red litmus paper changes colour to blue.  a) Alkali Substance b) Neutral Substance c) Acidic Substance 3) Most acidic substances are...... a) tasteless and salty. b) taste bitter and feel slippery when touched. c) taste sour and have burning sensation when touched. 4) Can litmus paper be substitute? a) No b) Yes 5) Agricultural lime is... a) Alkaline   b) Acidic c) Neutral

Science Year 3 Unit 8 Acid and Alkali

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