Atmosphere

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Word Cloud

What is the air made of?

A mixture of gases, particles, etc...

The Atmosphere

What is the atmosphere?

What is the atmosphere?

● A layer of gases that surround a planet.

Multiple Choice

Which graph represents the correct proportion of gases in earth’s atmosphere?

What is the atmosphere made of?

Plus a lot of other
gases in very, very
small amounts

So which graph was correct?

Multiple Choice

Which graph represents the correct proportion of gases in earth’s atmosphere?

Make a properly labeled circle graph

of our atmosphere

Plus a lot of other
gases in very, very
small amounts

Round the percentages to the nearest
0.1%

Earth's
Atmosphere

Other Gases like carbon
dioxide and argon

21 %

78%

Dropdown

What is the most abundant gas in our atmosphere?​

Select answer

Multiple Choice

What percentage of our atmosphere is made of nitrogen?

• 78 %

• 1 %

• 50 %

• 21 %

78% of our atmosphere is
made of NITROGEN

Nitrogen, like most other gases, is invisible.

What do we use nitrogen
for?

● MOST OF THESE USES REQUIRE

NITROGEN TO BE CHEMICALLY
COMBINED WITH OTHER ELEMENTS

Dropdown

What is the second most abundant gas in our atmosphere?​

Select answer

Multiple Choice

What percentage of our atmosphere is made of oxygen?

• 78%

• 1 %

• 21 %

• 50 %

Oxygen = 21 % of our
atmosphere?

● Where does the oxygen in our atmosphere

come from?

● Where does the oxygen in our atmosphere come from?

● Photosynthesizing organisms!

What are some of the uses of
oxygen?

Besides breathing?

What is the third most
abundant gas (less than
1%)?

ARGON

Carbon Dioxide makes up a
very small part of our atmosphere.
0.038%

This is a good
thing.

What gases are Greenhouse gases?

Does air and the atmosphere(made
of gases) have mass and volume?

● Is it matter?

Does air and the atmosphere(made
of gases) have mass and volume?

● Is it matter?

● Yes and yes

Properties of Air

● Air has pressure

− Pressure is the force pushing on a surface or area

Properties of Air

● Air has pressure because it has weight

− The weight of all the air above exerts pressure

Crushed by air

● Imagine being at the bottom of hundreds of

blankets=you would feel the pressure

● Why aren’t we crushed by the weight of air?

Measuring Air Pressure

● Mercury Barometer-Air pressure pushes

down on the mercury in the dish, causing the
level in the tube to rise.

Measuring Air Pressure

● Aneroid Barometer-does not require a liquid

Measuring Air Pressure

HIGHER NUMBER=HIGHER AIR PRESSURE

Multiple Choice

What instrument is used to measure air pressure?

• thermometer

• barometer

• anemometer

• hygrometer

Multiple Choice

What happens to temperature as you go up in the atmosphere?

• The temperature increases

• The temperature decreases

• The temperature stays the same

Multiple Choice

What happens to air pressure as you go up in the atmosphere?

• The air pressure increases

• The air pressure decreases

• The air pressure stays the same

● How is the atmosphere different from outer

space?

The atmosphere gradually thins out with increasing
altitude

● The atmosphere, when

scaled to the size of an
apple, is no thicker than
the skin on an apple.

Composition of the Atmosphere

◼ permanent gases

◼ variable gases

◼ trace gases

◼ aerosols

•

•

WATER VAPOR

Water vapor is H2O in the form of a gas. It exists in the atmosphere in varying (different) amounts ( 1-4 %).

Multiple Choice

What is the most abundant gas in the atmosphere?

• carbon dioxide

• nitrogen

• oxygen

• argon

Multiple Choice

What percentage is oxygen in the atmosphere?

• 1%

• 78%

• 4%

• 21%