Clouds

Name

1. What process forms clouds?

• vaporization
• precipitation
• condensation
• frost action

Tags

NGSS.MS-ESS2-4

2. What are clouds composed of?

• water vapor
• carbon dioxide
• water droplets
• ice crystals

Tags

NGSS.MS-ESS2-4

3. What is needed for clouds to form?

• water vapor
• condensation nuclei
• air must be saturated

4. Which are examples of condensation nuclei?

• dust particles
• grass
• roads
• glass containing ice tea

5. Finish the sentence: Warm, moist air

• rises because it is more dense than cold air
• rises because it is less dense than cold air
• sinks because it is more dense than cold air
• sinks because it is less dense than cold air

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

6. Finish the sentence: Rising air ________ and _______ to the dew-point.

• expands and cools
• expands and warms
• contracts and warms
• contract and cools

7. Finish the sentence: Once the air has reached the dew-point, the air becomes _______

• warm
• unsaturated
• saturated
• dry

Tags

NGSS.MS-ESS2-5

8. Once the air reaches the dew-point, ______

• water droplets form on dust particles
• condensation occurs
• it starts to rain
• it starts to snow

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

9. Most water vapor enters the atmosphere by the processes of

• convection and radiation
• condensation and precipitation
• evaporation and transpiration
• erosion and conduction

Tags

NGSS.MS-ESS2-4