Earth Science

Atmospheric Processes

Precipitation

Study Tip
To remember the various names of precipitation, try grouping them into different categories (e.g. stationary vs. motion, liquid vs. solid, etc.)

Stationary Precipitation

  • Some kinds of precipitation form in place.
  • Dew forms when the air in the atmosphere cools below its dew point on a cold surface.
  • Frost is dew formed under below-freezing temperatures.
Study Tip
To remember the various names of precipitation, try grouping them into different categories (e.g. stationary vs. motion, liquid vs. solid, etc.)

Precipitation with Motion

  • Most forms of precipitation fall from clouds.
  • Falling water droplets are called rain, and if the temperature is below freezing these droplets are called snow.
  • Glaze forms as rain freezes on the ground.
  • Sleet is rain that becomes ice before hitting the ground.
  • When ice particles become too heavy, they fall as hail.
Concept Check
  • Name and describe all of the different forms of precipitation.
  • When can you expect to see each type of precipitation?
Precipitation with Motion
a.Dew b.Frost c.Sleet d.Glaze e.Hail
Concept Check
  • Name and describe all of the different forms of precipitation.
  • When can you expect to see each type of precipitation?