What is convection?

• the transfer of heat from one place to another by the movement of fluids

• transfer of heat by touch

• transfer of heat by rays

What is a land breeze?

• breeze that comes off the sea

• a breeze that goes to the sea from the land during the day

• a breeze that goes from the sea to land during the day

• a breeze that goes from the land to the sea during the night

A large collection of water droplets is called...

• rain

• a cloud

• fog

What type of cloud appears whispy?

• cumulonimbus

• cirrus

• stratus

• cirrostratus

A thunderstorm occurs in which cloud type?

• cumulus

• stratus

• cirrus

• cumulonimbus

How does hail form?

• water freezes and falls to the earth

• updrafts carry water droplets well above freezing level, droplets freeze, fall, and are forced up again by updrafts until they get dense enough to fall to Earth

• snow falls through warm air, melts and falls through cold air, refreezes and forms ice pellets

• rain that freezes when surface temps are below freezing

What is sleet?

• rain that freezes when surface temps are below freezing

• snow falls through warm air, melts and falls through cold air, refreezes and forms ice pellets

• Water falling from clouds

Which pressure system brings precipitation, clouds, and wind?

• low pressure system

• medium pressure system

• high pressure system

Which pressure system brings calm weather?

• low pressure system

• medium pressure system

• high pressure system

The amount of moisture in the air is...

• water vapor

• humidity

• sweat

• sleet