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C. Match the following:
1. Dentine b. ringworms

2. Enamel c. storehouse of solid waste
3. Molars d. malaria

4. Bacteria f. hardest part of our body

5. Fungus g. tetanus
6. Viruses h. dengue, chickenpox

7. Protozoa i. 12 in number
8. Rectum j. layer below the enamel

D. Label the diagrams given below.
1. Structure of the tooth 2. Digestive System

E. Short Answer Questions.

1. How are teeth important to us?
2. What are microbes?

3. Name two diseases caused by fungus.
4. Name the different parts of a tooth.

5. How do microbes useful to us? Write one example.

F. Long Answer Questions.

1. Why should we keep our teeth clean?
2. What type of food is good for teeth?

3. How can we take care of our teeth?
4. Explain four kinds of microbes.

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