Weather

The overall condition of the atmosphere at any given time and place is know as _________________.

• meteorology

• weather

• barometer

• atmosphere

Earth's __________________ is a mixture of gases that surround the planet.

• weather front

• wind

• air pressure

• atmosphere

Earth's atmosphere is made up of mostly two gases. They are ________________ and __________________.

• hydrogen and helium

• oxygen and hydrogen

• nitrogen and oxygen

• helium and oxygen

Earth's atmosphere can be divided into four main layers: the thermosphere, mesosphere, _______________ and the ________________.

• stratosphere, troposphere

• hydrosphere, stratosphere

• troposphere, hydrosphere

• exosphere, stratosphere

Air pressure is the amount of _________________ being exerted by air on a given area.

• altitude

• air

• pressure

• force

This tool is used to measure air pressure.

• thermometer

• barometer

• rain gauge

• anemometer

Uneven heating of Earth by the sun causes differences in air pressure, which creates __________________.

• precipitation

• tornadoes

• wind

• altitude

Scientists that study weather are known as ___________________.

• meteorologists

• biologists

• chemists

• physicists

A _____________________ is used to measure air temperature in degrees Celsius or degrees Fahrenheit.

• wind vane

• rain gauge

• anemometer

• thermometer

Water that falls from the air to the ground as rain, sleet, snow, and hail is know as this.

• air pressure

• precipitation

• wind

• atmosphere