Bill Nye Water Cycle

____________ occurs when water vapor changes from gas to liquid and sticks to cold surfaces as little, tiny droplets of water.

• Evaporation
• Condensation
• Precipitation
• Collection

Clouds form when water vapor condenses and sticks to:

• heat in the air.
• dust particles in the air.
• raindrops.
• glass surfaces

Which of the following is a form of precipitation?

• rain
• snow
• hail
• all of the above

During collection, water is collected in all of these places EXCEPT:

• in snow
• in rivers
• in clouds
• in oceans

Evaporation is:

• when water vapor falls to the Earth's surface.
• when water molecules become visible to the human eye.
• when water changes from a liquid state to a gas state.
• None of the above

True or False? Earth and everything in it, uses the same water over and over again.

• true

• false

Which of the following best describes how water evaporates?

• Water molecules that move with higher energy evaporate first

• Water must be heated to 100 C to evaporate

• Water molecules that are cooled evaporate

• None of the above

Clouds form by condensation of:

• dust or dirt

• water vapor

• heat

• rain

True or False: The energy that powers the water cycle comes mostly from the Sun.

• True

• False

Challenge: The form of energy that comes from the Sun is:

• convection

• radiation

• conduction