| A | B |
|---|
| air pressure | the force of the air in the atmosphere when pulled to Earth by gravity |
| atmosphere | the air surrounding Earth up to a height of about 1,000 kilometers (621 mi.) |
| avalanche | a wall of snow that slides swiftly down a mountain |
| blizzard | a severe snowstorm with cold temperatures and heavy snow drifts |
| dust devil | a current of air whirling upward from the ground in a spiral motion |
| hail | round pieces of ice that sometimes fall during thunderstorms |
| precipitation | moisture that falls to Earth (rain, snow, hail, sleet) |
| temperature | the degree of hotness or coldness of anything, usually as measured on a thermometer |
| water vapor | water in the form of gas |
| waterspout | a whirling, funnel shaped or tubelike column of air occurring over water-usually in tropical areas |
| whiteout | a condition that occurs during a severe blizzard when visibility is very limited and everything looks white |
