SCIENCE 6_2ND QUARTER QUIZ (10/23/24)

1. 1. What is the main gas we breathe in?

• A. Oxygen

• B. Nitrogen

• C. Carbon dioxide

2. 2. What gas do we exhale?

• A. Oxygen

• B. Nitrogen

• C. Carbon dioxide

3. 3. What are the tiny air sacs in the lungs called?

• A. Diaphragm

• B. Alveoli

• C. Trachea

4. 4. Which muscle helps with breathing?

• A. Diaphragm

• B. Trachea

• C. Alveoli

5. 5. What is the scientific name for the windpipe?

• A. Diaphragm

• B. Trachea

• C. Alveoli

6. 6. What organ is responsible for gas exchange?

• A. Epiglottis

• B. Lungs

• C. Inhalation

7. 7. What structure covers the trachea during swallowing?

• A. Epiglottis

• B. Lungs

• C. Inhalation

8. 8. What is the process of breathing in called?

• A. Exhalation

• B. Inhalation

• C. Breathing

9. 9. What is the process of breathing out called?

• A. Exhalation

• B. Inhalation

• C. Breathing

10. 10. What is the voice box also known as?

• A. Diaphragm

• B. Nose

• C. Larynx