Water Cycle
When water warms up and turns into water vapor.
evaporation
The layer of air that surrounds Earth.
Atmosphere
What the air is like outside right now.
weather
hot climate near the equator with lots of rain.
tropical
Liquid water that falls from clouds.
rain
When water vapor cools and turns into tiny water drops.
Condensation
A tool used to measure air pressure.
Barometer
A prediction of what the weather will be like.
forecast
A very cold climate near the North or South Pole.
polar
Frozen water that falls from clouds in soft, white flakes.
snow
Water that falls from clouds, such as rain, snow, sleet, or hail.
Precipitation
A tool used to measure temperature.
thermometer
One of the four parts of the year: spring, summer, fall, or winter.
seasons
A long time with little or no rain.
drought
Frozen raindrops that bounce when they hit the ground.
sleet
When water gathers in rivers, lakes, oceans, or on the ground.
Collection
The amount of water vapor in the air.
humidity
How hot or cold something is.
temperature
A climate with mild temperatures and four seasons.
temperate
Balls of ice that fall from storm clouds.
hail
When water moves from plants into the air through their leaves.
Transpiration
Moving air.
wind
The place where two different air masses meet.
front
The usual weather of a place over a long time.
climate
Water in gas form that is in the air.
water vapor