Atmospheric Structure and Composition (edge lesson)

The atmosphere is a layer of

• solid

• liquid

• gas

• plasma

Earth's atmosphere does which of the following?

• supports life

• releases carbon dioxide into space

• distinguishes earth from other planets

• smothers life

Match the following component of the atmosphere with the percentage (according to Edge lesson)

• 78%

• Oxygen

• 21%

• Carbon Dioxide

• 0.9%

• Nitrogen

• 0.04%

• Argon

• 0.033%

• Water Vapor

Match the following atmospheric components with their features or factoid!

• Life needs this for protein making

• Oxygen

• Used by plants in photosynthesis

• Water Vapor

• forms clouds

• Nitrogen

• forms Ozone

• Argon

• not reactive

• Carbon Dioxide

Organize these options into the right categories

Groups:

(a) Oxygen

,

(b) Carbon Dioxide

• forms ozone

• amount in atmosphere has increased over time

• is a small percentage of the atmospheric gasses

• used by plants to make food

• needed by plants and animals

• Makes 21% of atmosphere

• needed to burn fuels

• is released into the atmosphere by animals and burning

Tags

NGSS.MS-ESS3-4

The atmosphere provides conditions that support ​ life on Earth.

• ​ (a)   oxygen

• Provides ​ (b)  

• Keeps Earth ​ (c)  

• Filters out ultraviolet radiation

• Protects Earth from ​ (d)  

• Provides
• water
• warm
• meteoroids

Match the followingMatch the characteristics of air with their meaning

• Amount of matter

• Density

• Force pushing on area/surface

• Pressure

• amount of mass in a volume- how packed

• Mass

Denser air exerts ​ (a)   pressure than less dense air.

Altitude is the ​ (b)   above sea level of a given point.

As altitude ​ (c)   , air pressure decreases

• The pressure ​ (d)   is due to fewer air particles above pushing down.

• more
• increases
• decrease
• height

Effects of Altitude on Air Density

As altitude increases , density ​ (a)   .

• ​ (b)   molecules are farther apart.

• Molecules in air push in all ​ (c)   .

• ​ (d)   air exerts more pressure than less dense air

• decreases
• Gas
• directions
• Denser

Organize these options into the layer of the atmosphere they represent (according to Edgenuity lesson)

Groups:

(a) Troposphere

,

(b) stratosphere

,

(c) mesosphere

,

(d) Thermosphere

• Includes ionosphere

• has an air pressure that is less than 1% of the pressure in the troposphere

• prevents meteoroids from reaching surface of earth

• gets warmer as altitude increases

• gets colder as altitude increases

• the atmosphere at the surface of the planet

• good place for airplanes to fly

• surprisingly hot

• absorbs radiation from sun

• has the highest air pressure of the layers

• snow, rain, clouds happen in this layer

• contains the ozone layer

• innermost (lowest) layer

• Where the northern/southern lights occur (aurora boralis

• inlcudes exosphere