1. 1. Which of the following is an example of a liquid?

• a. Milk

• b. Pencil

• c. Bread

• d. grains

2. 2. What is the process called when a liquid changes into a solid?

• a. evaporation

• b. condensation

• c. freezing

• d. sublimation

3. 3. Which of the following is a need of plants: air or food?

• a. air

• b. food

• c. both

• d. neither

4. What is the primary function of the roots in a plant?

• a. to absorb water and nutrients

• b. to make food through photosynthesis

• c. to provide support

• d. to produce flowers

5. 5. Which of the following is an example of a renewable resource: wind or plastic?

• a. wind

• b. plastic

• c. both

• d. neither

6. 6. What is the process called when a plant takes in carbon dioxide and releases oxygen?

• a. photosynthesis

• b. respiration

• c. transpiration

• d. germination

7. 7. Which of the following is a form of energy: sound or heat?

• a. sound

• b. heat

• c. both

• d. neither

8. 8. What is the process called when light bounces off a shiny surface?

• a. reflection

• b. refraction

• c. absorption

• d. transmission

9. 9. Which of the following is a source of non-renewable energy: coal or solar power?

• a. coal

• b. solar power

• c. both

• d. neither

10. 10. What is the process called when a gas changes into a liquid?

• a. evaporation

• b. condensation

• c. melting

• d. freezing