Gr. 3 – End of Term Exam – Integrated Studies

Read each question carefully, then circle A, B, C or D to choose the correct answer.

1. What is the main function of molars?

a. Cutting food                                                b. Grinding and chewing food

c. Biting into food                                          d. Tearing food

2. Which type of teeth are best for cutting into food?

 a. Incisors                          b. Canines                         c. Premolars                      d. Molars

3. How do the different types of teeth work together to aid in digestion?

a. Incisors cut food, canines tear, and molars grind.

b. Canines cut food, molars tear, and incisors grind.

c. Molars cut food, incisors tear, and canines’ grind.

d. Incisors tear food, molars grind, and canines cut.

4. What is the hard, outer layer of a tooth called?

a. Enamel                           b. Dentin                            c. Pulp                                 d. Cementum

5. What is the purpose of the cementum?

a. Protecting the tooth’s nerve                                  b. Anchoring the tooth in the jaw.

c. Providing a hard surface for biting                       d. Producing saliva.

6. How do the external parts of a tooth work together to maintain oral health?

a. Enamel protects the tooth from decay, dentin provides structure, and cementum anchors the tooth.

b. Cementum protects the tooth from decay, enamel anchors the tooth, and dentin provides structure.

c. Dentin protects the tooth from decay, cementum anchors the tooth, and enamel provides structure.

d. Cementum protects the tooth from decay, dentin provides structure, and enamel anchors the tooth.

7. Where is the stomach located in the human body?

a. In the chest                   b. In the abdomen           c. In the head                    d. In the legs

8. Which cavity houses the lungs in the human body?

a. Thoracic cavity             b. Abdominal cavity        c. Pelvic cavity                   d. Cranial cavity

9. Why is it important for the stomach to be located in the abdominal cavity?

a. To protect it from external damage                     b. To make digestion more efficient

c. To keep it close to the heart                                  d. To aid in breathing

10. What is the primary function of the stomach?

a. Breaking down food into smaller pieces             b. Absorbing nutrients into the blood

c. Pumping blood                                           d. Producing enzymes for digestion

11. Read each statement carefully then use a tick to indicate True or False:

Statement	True	False
Incisors are sharp teeth used for cutting and tearing food.
Premolars have a flat surface suitable for grinding and chewing
The roots of a tooth are covered by enamel.
The pulp contains blood vessels and nerves
The lungs are found in the abdominal cavity.
The diaphragm is a muscle that separates the chest cavity from the abdominal cavity.
The stomach helps in the exchange of oxygen and carbon dioxide.
The lungs help in the exchange of gases during breathing.
The stomach is a small, round organ.

Fill in the Blanks: Use the words below to complete the following sentences.

12. Canines are pointed teeth used for gripping and tearing __________.
13. Incisors and canines are found at the front of the mouth, while __________ are located at the back and are used for grinding.
14. The pointy part of the tooth that is visible above the gum is called the __________.
15. The hard, bony structure that holds the tooth in place is called the __________.
16. The stomach is part of the __________ system.
17. The process of breathing involves the exchange of oxygen and __________.
18. The lungs play a crucial role in the process of __________.
19. The canines play a role in __________ food.

20. Match each tooth to its correct function.

Type of Tooth                                                 Function of Tooth

incisors                                                             Tearing and ripping food.

Canines                                                             Grinding and crushing food for easier digestion.

Premolars                                                         Cutting and chopping food into smaller pieces.

Molars                                                              Crushing and grinding food, aiding in the chewing

process.

21. Look carefully at the diagram below, then label the external parts of the tooth.

22. Use a tick to indicate the correct function of enamel, dentin, and cementum.

Function	Enamel	Dentin	Cementum
Anchors the tooth to the jawbone through the periodontal ligament; protects and covers the tooth roots
Supports the enamel, providing a cushion against external forces; transmits sensory signals (such as temperature)
Provides a hard, protective outer surface for teeth; resists wear and tear during biting and chewing

Answer the following questions using complete sentences:

23. Name one type of tooth and its function.

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24. Explain the role of molars in the process of digestion.

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25. Discuss the importance of maintaining healthy teeth for overall well-being.

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26. Name one function of the enamel.

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27. Explain the role of dentin in tooth structure. Discuss the consequences of neglecting oral hygiene on the external parts of a tooth.

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28. Name one function of the stomach.

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29. Explain how the stomach helps in the digestion of food.

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30. Discuss the interconnectedness of the respiratory and digestive systems in the human body.

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