Science Exam

Name

Date

Email

Phone Number

1. Which of the following is a gas that plants use for photosynthesis?

• a) Oxygen

• b) Nitrogen

• c) Carbon Dioxide

• d) Hydrogen

2. What is the primary source of energy for the Earth?

• a) The Moon

• b) The Sun

• c) Wind

• d) Fossil Fuels

3. Which of the following is the smallest unit of life?

• a) Organ

• b) Cell

• c) Tissue

• d) Organism

4. What is the process by which a liquid turns into a gas?

• a) Freezing

• b) Condensation

• c) Evaporation

• d) Melting

5. Which of these elements is most commonly found in the human body?

• a) Carbon

• b) Nitrogen

• c) Hydrogen

• d) Oxygen

6. Explain the role of the heart in the circulatory system.

7. What is the difference between a producer and a consumer in an ecosystem?

8. Describe the water cycle in a few sentences.

9. What is the main function of the respiratory system in humans?

10. What is the significance of the scientific method in conducting experiments?

Please check the box below to proceed