What is Earth's Atmosphere?

What layer of atmosphere do you live in?

• thermosphere

• stratosphere

• troposphere

• exposphere

What instrument measures air pressure?

• meter stick

• pressure gauge

• thermometer

• barometer

There is _____ atmosphere -and air weight- above a valley than on top of a mountain.

Why is ozone bad or good?

How do we call people that study the atmosphere?

• scientist

• meteorologist

• geologist

• botanist

What weather term describes a cold air mass moving in to replace a warm air mass?

• jet stream

• cold front

• warm front

• water vapor