5.1.1

• Define atmosphere and atmospheric pressure

• Why is there more atmospheric pressure at lower altitudes that at higher altitudes?

• How much of the atmosphere is within 40 km of Earth’s surface?

• What are the main components of the atmosphere and the percentage that each

component occupies?

• Besides gases and water vapor, aeroplankton and atmospheric dust are also in the

atmosphere. Define these 2 things and list the 12 examples given

• Explain the purpose of nitrogen, oxygen, and carbon dioxide. Give at least 2 facts/uses

for each

• 1 fun fact from FYI

5.1.2

• What is the difference between the homosphere and the heterosphere?

• Describe the layers of the homosphere

o Troposphere/ tropopause

o Stratosphere/ stratopause

o Mesosphere/ mesopause

• Why does temperature decrease with increasing altitude in the homosphere?

• Why does temperature start to rise again in the mesopause?

• Describe the layers of the heterosphere

o Thermosphere (including the ionosphere)

o Exosphere

• We will watch this in class: https://www.youtube.com/watch?v=3CerJbZ-dm0

• 1 fun fact from history

5.1.3

• Generally speaking, how do scientists say the magnetic field around the earth is

created?

• Define magnetosphere

o Hint – it includes the last 3 sentences of paragraph 1

o FYI – it is pronounced mag-NEE-duh-sphere

• The dynamo theory and the rapid-decay theory differ on the origin of the electric

current. Describe each.

• Define solar wind and plasma

• How does solar wind affect the magnetosphere?

o The answer is in the book, but the video below may help you to picture it better.

o https://www.youtube.com/watch?v=URN-XyZD2vQ

• Explain how technology was used to discover radiation in the magnetosphere.

o Hint: second to last paragraph and History section

• Define geomagnetic storm

• According to the Try This section, in what 2 ways does the magnetosphere benefit or

affect things on earth?

5.1.4

• Define and explain UV

• Define ozone and tell where it is located in the atmosphere

• How is oxygen used for respiration different from oxygen in the ozone?

• What is the polar vortex?

• Define CFCs and list what they were used for

• The above 2 questions (more or less) explain the hole in the ozone layer. Document

that.

• Watch video: https://www.youtube.com/watch?v=0ZfBgjUnXIs

• This is a link to October 2020’s pictures of the hole in the ozone. (You can change the

month and year down below.) It seems to be most prominent in August through

November (like the polar vortex suggests.)

https://ozonewatch.gsfc.nasa.gov/monthly/monthly_2020-10_SH.html