gases that surround Earth
atmosphere
The condition of the atmosphere at a given time and place
weather
how hot or cold something is
temperature
the force of air pushing down on Earth
air pressure
water in the form of a gas in Earth's atmosphere
water vapor
the changing of a liquid to a gas
evaporation
the changing of a gas into a liquid
condensation
the movement of Earth's water over and over from a liquid to a gas and from a gas to a liquid
Water Cycle
water in the atmosphere that falls to Earth as rain, snow, hail or sleet
precipitation
an instrument used to measure temperature
thermometer
a device used for measuring air pressure
barometer
