Atmosphere

Question 1

Atmosphere

Answer 1

Layers of air/gases surrounding the earth that protects and supports life

Question 2

Troposphere

Answer 2

• The layer in which we live
• Located from 0km-10km above earth’s surface
• Warmest and densest layer

Question 3

Stratosphere

Answer 3

• located from 10-50 km above earth’s surface

- contains a layer of ozone that absorbs UV rays

Question 4

Mesosphere

Answer 4

• located from 50-90km above earth’s surface
• at the top, temperature is -85 degrees Celsius
• meteorites burn up here

Question 5

Thermosphere

Answer 5

• located from 90-~500km above earth’s surface

- difficult to measure because it continues to space

Question 6

Exosphere

Answer 6

• layer above the thermosphere
• beyond this layer is space
• located from ~500km- beyond

Question 7

Ultraviolet radiation

Answer 7

• type of radiation that has higher energy than visible light
• not visible to the eye
• causes sunburn and other types of damage

Question 8

Infrared radiation

Answer 8

• type of radiation with less energy than visible light
• not visible to the eye
• warms the material that absorbs it

Question 9

Ozone (O3)

Answer 9

• molecule made of 3 oxygen atoms

- ozone found in troposphere is considered pollution

Question 10

Ozone layer

Answer 10

-the ozone layer, located in the stratosphere, absorbs harmful UV radiation from the sun

Question 11

Gases of the atmosphere:

Answer 11

78% nitrogen (N2)
21% oxygen (O2)
1% trace gases (CO2, Ne, Ar, H, water vapor)

Question 12

Air pressure

Answer 12

• The force of air molecules pushing on an area
• the greater the force, the higher the pressure
• air pressure is pushing in all directions

Question 13

Barometer

Answer 13

• an instrument that measures air pressure
• 2 types: aneroid and Mercury
• a rising barometer indicates good weather coming
• a falling barometer indicates bad weather coming

Question 14

Density

Answer 14

The amount of mass in a given formula

Density= mass/volume