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13 Cards in this Set

  • Front
  • Back
How do clouds form?
clouds form by water in the air condensing into droplets

(they condense onto dust and other particles in the air, because as we know for condensation to occur the vapor needs something to condence on to)
What causes rain?
Condensation leading to cloud droplets that form rain drops which fall through warm air
What is hail?
condensation leads to cloud droplets
they then freeze
more cloud droplets collect around new ice crystal
they then freeze
this repeats over and over
fall to the ground
What is percipitation?
water particals in any form that fall from the atmosphere to the ground
What first step do all types of percipitation have in common?
condensation around a nucleus
Name 4 types of percipitation.
What do rain drops become when they fall into cold temperatures near the ground?
What causes rain?
Condensation leading to cloud droplets which then fall to the ground through warm air
Name two types of percipitation that form high in the sky when cold droplets freeze.
snow and hail
What is sleet?
Condensation leading to cloud droplets that form rain drops which fall through air at freezing temperatures
What is snow?
condensation from frozen water vapor which leads to ice crystals
Ice crystals grow forming snowflakes
fall through the air
A snow flake forms by doing this around a nucleus.
condensation around an ice crystal
How do we show cloud cover on a weather station model? Describe this.
we use cloud symbols
empty circle = clear
solid circle = overcast
1/4 solid on the upper right = scattered clouds
1/2 solid on the right = partly cloudy
1/4 left unsolid on the upper left = mostly cloudy