Earth Science Crossword

Any form of water that falls from a cloud.
Process of water vapor changing to a liquid.
The conversion of a vapor directly to a solid.
The amount of water in the air.
How humidity is measured.
Masses of cold air and warm air that collide.
Process of changing a liquid to a gas.
Heat that doesn't produce a temperature change.
Tiny bits of particle matter.
Sheet like clouds that cover most or all of the sky.
Clouds that consist of rounded individual cloud masses.
High, white, and thin clouds
water in the liquid state 0 degrees Celsius