I am the natural process in which our clean water supply is restored.

I am the layers of gases that surround Earth.

I am the conditions of the atmopshere at a certain place and time.

I am the intstrument that measures air temperature.

I am water vapor in the air that condenses.

I am the process in which liquid water turns to water vapor (gas).

I am the layers of the atmospher where weather occurs.

I am the movement of air.

I am the instrument that displays the direction of the wind.

I am clouds that bring thunderstorms.

I am the process in which water vapor (gas) turns back to liquid water.

I am the layers of the atmosphere where airplanes fly.

I am water in the air.

I am the instrument that collects and measures precipitation.

I am clouds that are low and bring steady rain.

I am the process in which water falls to the ground.

I am the layer of the atmosphere where shuttles fly.

I am the place where two air masses meet.

I am the instrument that measures air pressure.

I am fluffy, low clouds that mean the weather is fair.

I am the four types of precipitation.

I am the two main gases in the air.

I am the weight of air as it pressures down.

I am the instrument that measures wind speed.

I am thin, feathery clouds that are high in the sky and indicate fair weather.