Earth's Atmosphere

Earth's Atmosphere

S6E3.a. ...compare and contrast the composition of Earth's atmospheric layers...include the troposphere, stratosphere, mesosphere and thermosphere...

​The layers are:

Exosphere Farthest from Earth

Thermosphere

Mesosphere

Stratosphere

Troposphere​ Closest to Earth

​Scientist divide the atmosphere into layers, depending on the gases present and the resulting differences in temperature.

​

Multiple Choice

What is the atmosphere that surrounds the Earth made of?

• oxygen

• a mixture of particles

• a mixture of gases

• water vapor

Multiple Choice

What pulls the gas molecules in the atmosphere down to Earth?

• air pressure

• gravity

• water

• solar energy

Multiple Choice

Which answer best describes Earth's atmosphere?

• 78% oxygen and 21% nitrogen

• 78% nitrogen and 21% oxygen

• 78% carbon dioxide and 21% oxygen

• 78% oxygen and 21% carbon dioxide

Multiple Choice

What happens to air pressure as altitude increases?

• it increases

• it decreases

• it stays the same

Multiple Choice

Where is air pressure the strongest?

• on top of a mountain

• on the Earth's surface

• in outer space

• in the clouds

Multiple Choice

Why does the air temperature change at different altitudes?

• it gets hotter as you move toward the sun

• It gets colder as you move away from Earth

• some altitudes have more gases to absorb solar energy than others

• some altitudes receive less sunlight that others

Multiple Choice

In what layer of the atmosphere do the temperatures drop to the coldest temperature?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Multiple Choice

In which layer of the atmosphere does most weather occur?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Multiple Choice

In which layer of the atmosphere does the ozone layer occur?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Multiple Choice

Why is the ozone layer important?

• It blocks harmful uv solar radiation

• It creates the oxygen we breathe

• It causes water vapor to condense

• It cools the Earth's atmosphere

Multiple Choice

Which layer of the atmosphere is closest to outer space?

• troposphere

• stratosphere

• mesosphere

• thermosphere

Multiple Choice

In which layer would you see meteors flashing across the sky?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Multiple Choice

In which layer of the atmosphere do human beings, and most all other life on Earth, live?

• troposphere

• stratosphere

• mesosphere

• thermosphere