Review Weather-1

Which of these processes forms the VISIBLE part of a cloud?

  1. Evaporation

    No. Evaporation changes liquid water into water vapor. Water vapor is an invisible gas, so it is not the visible part of the cloud.
  2. Condensation

    Yes! Condensation changes water vapor into droplets of liquid water to form the cloud. These are just like the tiny water droplets that form fog, letting you see the cloud.
  3. Precipitation

    No. Precipitation can fall from a cloud, but it is not the process that forms the cloud.
  4. Convection

    No. Convection carries the water vapor upwards so it can cool and condense, but condensation is what forms the visible part of the cloud.

Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.


SC.3.P.9.1 Describe the changes water undergoes when it changes state through heating and cooling by using familiar scientific terms such as melting, freezing, boiling, evaporation, and condensation.

SC.5.E.7.1 Create a model to explain the parts of the water cycle. Water can be a gas, a liquid, or a solid and can go back and forth from one state to another.

>>> Teacher Page: Water Cycle


UT.4.I.2.a Locate examples of evaporation and condensation in the water cycle (e.g., water evaporates when heated and clouds or dew forms when vapor is cooled).
Cloud Types video
Making a Solar Still video
A Watched Pot video
Cloud Formation, part 1 video, ClosedCaptions
The Water Cycle video
A Model of the Water Cycle video, ClosedCaptions
A Cool Experiment text page
Review Weather-1 practice
Review Weather-2 practice


MS-ESS2-5 Collect data to provide evidence for how the motions and complex interactions of air masses results in changes in weather conditions.
Cloud Types video
Nephoscope video
Cloud Formation, part 1 video, ClosedCaptions
Pine Cone Weather text page, free
Review Weather-1 practice
Review Weather-2 practice
Review Weather-6 practice
Review Weather-4 practice
Review Weather-3 practice