1. I’m reading about an acid attack on a boy. What are you reading, dad? Cartoon 1

2. What can this incident tell you about the nature of acids? Acids can be corrosive. Cartoon 1

3. Does that mean all acids are harmful? No. Acids are commonly found in the food we eat, such as vinegar and coke. Cartoon 2

4. What are the types of acids in coke and vinegar? Coke contains carbonic acid whereas vinegar contains ethanoic acid. Cartoon 2

5. Come, try this lemon. Tell me how does it taste? How do you know those food contain acids? Cartoon 3

6. Why do lemons taste sour? Acids have a sour taste and lemons contain citric acid. Cartoon 3

7. But not all acids are edible, is there another way to test for acids? Yes, we can use damp blue litmus paper to test for acids. Cartoon 4

8. The acid turned damp blue litmus paper red. How has the acid changed the damp blue litmus paper? Cartoon 4