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B. Write ‘T’ for true and ‘F’ for false statements.
1. When a child is about 5 or 6 years old, milk teeth start falling out, one by one.
2. The milk teeth grow in and take the place of the permanent teeth.
3. An adult has 33 teeth in all.
4. Premolars are used to crush and chew food.
5. The root of the tooth is the portion which is visible in the mouth.

C. Give one word answer.
1. How many milk teeth does a baby have?
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2. How many wisdom teeth does an adult have?
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3. Which part of a teeth holds the nerves and blood vessels?
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4. What is the inner surface of tooth called?
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5. Name the hardest material in our body.
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6. Where does the last stage of digestive system happen ?
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D. Answer the following questions.
1. What are milk teeth and permanent teeth?
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2. What are the different kinds of teeth? For what purpose are they used?
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3. What are the parts of teeth? Define.

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