FOSS Science 5th Grade Flashcard: The Air Around Us/The Atmosphere

Front

What is air pressure?

Back

Air pressure is the force exerted on a surface by the weight of the air above that surface.

Front

How does air pressure change with altitude?

Back

Air pressure decreases with increasing altitude.

Front

What would happen to Earth without an atmosphere?

Back

There would be no life, no air, and more radiation from the sun would harm the planet.

Front

What is the relationship between altitude and the amount of oxygen available to breathe?

Back

The higher one is in the atmosphere, the less oxygen (air) there is available to breathe.

Front

What is the force with which air pushes on you called?

Back

Air Pressure.

Front

In which sphere do most airplanes fly?

Back

Troposphere.

Front

What is the main component of the Earth's atmosphere?

Back

Nitrogen, which makes up about 78% of the atmosphere.

Front

What is the role of the atmosphere in protecting Earth?

Back

The atmosphere protects Earth from harmful solar radiation and helps regulate temperature.

Front

What is the difference between the troposphere and the stratosphere?

Back

The troposphere is the lowest layer of the atmosphere where weather occurs, while the stratosphere is above it and contains the ozone layer.

Front

What is the ozone layer?

Back

The ozone layer is a region of the stratosphere that absorbs most of the sun's harmful ultraviolet radiation.