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Flashcards in Atmosphere Deck (14)
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1

Atmosphere

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

2

Troposphere

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

3

Stratosphere

- located from 10-50 km above earth's surface
-contains a layer of ozone that absorbs UV rays

4

Mesosphere

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

5

Thermosphere

-located from 90-~500km above earth's surface
-difficult to measure because it continues to space

6

Exosphere

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

7

Ultraviolet radiation

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

8

Infrared radiation

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

9

Ozone (O3)

-molecule made of 3 oxygen atoms
-ozone found in troposphere is considered pollution

10

Ozone layer

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

11

Gases of the atmosphere:

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

12

Air pressure

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

13

Barometer

-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

14

Density

The amount of mass in a given formula

Density= mass/volume