Page 272 - New Medley 4 Semester 1

B. Write True or False.

1. We have five incisors in each jaw.

2. Teeth are fixed in the gums of our jaws.

3. Taking good care of our teeth can save them from decaying.

4. Digestion begins in the mouth with the chewing of food.

C. Match the following.

Column A Column B

1. Enamel (a) the layer below the enamel
2. Dentine (b) the outermost white layer of the tooth

3. Pulp (c) hold the teeth in place

4. Gums (d) make us feel the toothache
5. Nerves (e) the central part of the tooth

D. Answer these questions.

1. What are milk teeth and permanent teeth?
2. Write the names and functions of the four types of teeth.

3. How should we take care of our teeth?

4. Write down the path of food taken in the digestive system.
5. Draw a neat diagram showing the structure of a tooth.

Think and Answer • Critical Thinking/Health and Well-being

1. Unhealthy teeth can lead to poor digestion. How?

2. Why should we chew the food well while eating?

3. Why are teeth at the back of jaw broader?

Let Us Do • Digital Integration

Collect information about the number of teeth found in the lower and upper jaws of
five different animals. Also, find out the functions of teeth in these animals. Make a
record of the information collected by you. S E L Social Awareness

(Note: Do not try to go near stray animals and open their mouth.)

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