Unit 7 Water and Weather

water that contains salt in it (oceans, some lakes)

• salt water

• fresh water

• water cycle

water that contains little salt (rivers, lakes, streams, glaciers, waterfalls)

• water cycle

• fresh water

• condensation

movement of water from Earth's surface to the air and back

• water cycle

• evaporation

• condensation

change from gas to liquid

• condensation

• precipitation

• evaporation

water that falls from the sky (hail, snow, sleet, and rain)

• precipitation

• evaporation

• condensation

solid / ice > liquid / water > gas / water vapor

• change of state in the water

• condensation

• evaporation

layers of gases in Earth

• atmosphere

• oxygen

• weather

one of the gases in the atmosphere

• oxygen

• weather

• temperature

condition of the atmosphere at one place and time

• weather

• atmosphere

• oxygen

the measure of how cold and hot something is

• temperature

• weather

• tools that measure weather