Forms of Precipitation

Front

What is precipitation?

Back

Precipitation is any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

Front

What are the four main types of precipitation?

Back

The four main types of precipitation are rain, snow, sleet, and hail.

Front

What conditions lead to the formation of snow?

Back

Snow forms when the temperature in the clouds and the air is below freezing, allowing water vapor to crystallize into ice.

Front

How does sleet form?

Back

Sleet forms when snow falls, melts into rain, and then refreezes before reaching the ground.

Front

What is hail and how does it form?

Back

Hail is a type of precipitation that forms in thunderstorms when updrafts carry raindrops upward into extremely cold areas of the atmosphere, causing them to freeze and accumulate layers of ice.

Front

What is the process of freezing rain?

Back

Freezing rain occurs when rain falls through a layer of cold air and freezes upon contact with cold surfaces, forming a layer of ice.

Front

What is the role of temperature in precipitation types?

Back

Temperature determines the form of precipitation: above freezing results in rain, at freezing can lead to sleet or freezing rain, and below freezing results in snow.

Front

What happens to hailstones as they move within a thunderstorm?

Back

Hailstones can be carried up and down within a thunderstorm, gaining layers of ice each time they are lifted and then fall.

Front

Why do some hailstones have layers?

Back

Hailstones have layers because each time they are lifted and dropped within a thunderstorm, they accumulate a new layer of ice.

Front

What is the difference between sleet and hail?

Back

Sleet is small ice pellets that form when rain freezes before hitting the ground, while hail is larger balls of ice that form in thunderstorms.