**Test for Science for Class 4: Teeth Related**

Teeth are an important part of our body that helps us chew and digest our food. It is essential for students to understand the structure and function of teeth to maintain good oral hygiene. Here is a test for Class 4 students to assess their knowledge about teeth:

**Section 1: Labeling**

1. Label the following parts of a tooth:
- Crown
- Root
- Enamel
- Dentin
- Pulp
- Gum

2. Fill in the blanks:
- The hardest part of a tooth is called ___________.
- The part of the tooth that is visible above the gum is called the ___________.
- The innermost part of the tooth is called the ___________.
- The substance that protects the tooth's surface is called ___________.
- The fleshy part surrounding the base of the tooth is called the ___________.

**Section 2: Multiple Choice Questions**

1. Which type of teeth are used for tearing and biting food?
a) Incisors
b) Canines
c) Molars

2. How many types of teeth are there in our mouth?
a) 2
b) 3
c) 4

3. What is the function of saliva in our mouth?
a) It helps in chewing food
b) It helps in swallowing food
c) It helps in breaking down food

4. What should we do to keep our teeth healthy?
a) Brush our teeth twice a day
b) Eat lots of sugary foods
c) Avoid drinking water

**Section 3: Short Answer Questions**

1. Explain the importance of brushing teeth.
2. Describe the process of tooth decay and how it can be prevented.
3. Why is it important to visit a dentist regularly?

Answering these questions will help assess the students' understanding of teeth and oral hygiene. It will also encourage them to think critically and apply their knowledge in practical situations.

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