Atmosphere

• A blanket of gases that surround Earth.

Weather

• What the air is like at a certain time and place.

• We use air  temperature, precipitation, wind and air pressure to describe weather.

Precipitation

• water that falls to the ground from the atmosphere.

Temperature

• A measure of how hot o cold something is.

Thermometer

Wind

• Moving air is called wind.

• Air moves from areas where air pressure is high to areas the pressure is low.

• Wind is caused by differences in air pressure.

Measures

Rain gauge

Measures how much rain has fallen.

Air pressure

Is the force of air pressing down on Earth’s surface.

Barometer