Earth's Atmosphere

Thermal expansion is the increase in volume that results from an increase in temperature.

• True

• False

Tags

NGSS.MS-PS1-4

The stratosphere is the top layer of Earth's atmosphere.

• True

• False

An astronomer studying planets outside our solar system has analyzed the atmosphere of four planets. Which of these planets' atmospheres would be most able to support a colony of humans?

• Planet A: 76% Nitrogen, 23% Oxygen, 1% Other

• Planet B: 82% Nitrogen, 11% Oxygen, 7% Other

• Planet C: 78% Nitrogen, 1% Oxygen, 21% Other

• Planet D: 27% Nitrogen, 3% Oxygen, 70% Other

Put the atmospheric layers in order from closest to farthest from earth's surface. ​ ​ ​

• Thermosphere
• Mesosphere
• Troposphere
• Exosphere

• Stratosphere

Match the following

• Troposhere

• The 'middle', meteorites, your blood would boil

• Mesosphere

• Serene layer, thin & dry air,

• Stratosphere

• Weather, earth's surface, our home.

• Thermosphere

• 'Busy layer', expands, space stations, northern & southern lights.

• Ozone Layer

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Greenhouse gases generate "heat" in the atmosphere by...

• undergoing a chemical reaction
• undergoing fusion
• absorbing infrared  light
• reflecting incoming sunlight

Tags

NGSS.HS-ESS2-4

What protects Earth from ultraviolet rays from the sun?

• ozone layer

• mesosphere

• air pressure

• troposphere

A layer of air that surrounds Earth to keep us warm is called ...

• atmosphere
• Sun's rays
• ozone layer
• air pressure

What gas makes up the majority of the Earth's modern atmosphere?

• oxygen

• nitrogen

• water vapor

• carbon dioxide

What is the percentage of oxygen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%