Unit 5 Comp. of Atmosphere & Human Impact TCAP Review

Multiple Choice

What is occurring in the experiment?

• Pure substances combine and form a new pure substance.

• Pure substances combine and form a mixture.

• Mixtures combine and form a new mixture.

• Mixtures combine and form a pure substance.

Multiple Select

A student claims that vinegar & baking soda interact when they combine. Which 2 observations support the student's claim?

• Bubbles are produced.

• A color change occurs.

• The mass changes.

• An odor is produced.

• The temperature changes.

Multiple Choice

What can be concluded about the motion of the particles in the beaker during the reaction?

• The particles are moving faster after the reaction b/c the temp is decreasing.

• The particles are moving slower after the reaction b/c the temp is decreasing.

Multiple Choice

Which particle diagram best represents the CO2 produced in the reaction?

Multiple Choice

Why is the total mass of the reactants greater than the total mass of the products?

• Acetic acid turns into H2O, which causes the products to lose less mass.

• The temp changes, which causes the products to have less mass.

• Some of the baking soda is destroyed by the vinegar, causing the products to have less mass.

• Some of the CO2 leaves the beaker, causing the products to appear to lose mass.

PEELING BACK THE

LAYERS OF THE
ATMOSPHERE

EARTH’S ATMOSPHERE

•Earth's atmosphere is our natural shield against the harsh
conditions of space— including everything from meteors and falling
satellites to deadly ultraviolet radiation from the sun.

•Air - It also contains the air we breathe, the weather we experience
and helps to regulate planetary temperatures.

Multiple Choice

It also contains the air we breathe, the weather we experience
and helps to regulate planetary

• Atmosphere
• Temperatures

• Clouds
• Oxygen

AIR

•The atmosphere consists of layers of gases, called "air", that
surround the planet and are retained by Earth's gravity.

•"Air" is the common name given to the combination of gases
used by organisms for breathing and photosynthesis.

•By volume, dry air contains:

– 78.09% nitrogen

– 20.95% oxygen

– 0.93% argon

– 0.039% carbon dioxide

– Smaller amounts of various other gases and water vapor

Multiple Choice

Which element has the highest volume that dry air contains?

• Nitrogen
• Argon
• Carbon Dioxide
• Oxygen

ATMOSPHERIC LAYERS

Air composition and atmospheric pressure is not
consistent throughout the atmosphere, however, and
varies at different altitudes, giving the atmosphere 5
distinct principle layers.

TROPOSPHERE

• Beginning at the surface of Earth, the troposphere extends to around
7 miles up

• This is the layer we live in and contains most of what we consider to be

"the atmosphere", including the air we breathe and nearly all of the
weather and clouds we see.

• In the troposphere, the temperature of the air decreases the higher you
go.

Multiple Choice

We live in the ____________, and the temperature ___________ the higher up we go.

• stratosphere, increases
• mesosphere, decreases
• exosphere, increases
• troposphere, decreases

STRATOSPHERE

• This layer exists between 7 to 31 miles above the surface of Earth.

• Unlike the troposphere below, the air temperature actually increases with

altitude making the air stratified.

• When possible, commercial jet aircraft fly in the lower stratosphere to avoid

the turbulence which is common in the troposphere, due to convection.

Multiple Choice

Stratosphere air temperature actually __________ with altitude.

• remains constant
• increases
• decreases
• fluctuates

Multiple Choice

How many distinct principle layers does our earth's atmosphere have?

• 2

• 3

• 5

• 6

MESOSPHERE

• The third layer of Earth's atmosphere, the mesosphere extends from

around 31 to 50 miles high.

• Considered one of the coldest places on Earth, the average temperature

is around -120°F.

• This layer is where most meteors burn up upon entering Earth's

atmosphere and is the highest elevation at which a cloud can form.

Multiple Choice

The average temperature in our mesosphere is around _______.

• -90 degrees F

• -50 degrees F

• -70 degrees F

• -120 degrees F

THERMOSPHERE

• Spans the area 50 to 440 miles above Earth's surface.

• Where high energy ultraviolet and x-ray radiation begin to be absorbed causing massive

temperature variations. Highly dependent on solar activity, temperatures here can
range from as low as -184°F to as high as 3,630°F.

• Despite the high temperatures, this layer of the atmosphere would still feel very cold to

our skin due to the very thin atmosphere. There is not enough molecules to transfer heat.

• Earth's curvature becomes distinctly clear and space travelers begin to

experience "weightlessness".

• Because of the heavily ionized atmosphere present in the thermosphere, it is also home

to the
phenomenon known as
auroras.

Multiple Choice

The thermosphere is home to the phenomenon known as the ___________.

• auroras

• gasses

• lights

• belt

EXOSPHERE

• The final layer of Earth's atmosphere.

• This layer extends from around 440 miles above Earth to nearly 6,200 miles.

• The atmosphere in the exosphere is incredibly thin and no longer behaves like normal gas.

• The atoms and molecules are so far apart that they can travel hundreds of miles without

colliding with one and another.

• This layer contains a large portion of low-Earth orbiting satellites.

Multiple Choice

This layer contains a large portion of low-Earth orbiting satellites.

• Exosphere

• Troposphere

Human Impact

Honesty

I am going to be very honest and say that we did this in 6th grade. I am not going to go back over it all with you guys when you have had 2 years of it.

Multiple Choice

Which of the diagrams shown represents our current atmosphere?

• Diagram A

• Diagram B

Multiple Choice

Which of the diagrams has no biotic factors present?

• Diagram A

• Diagram B

Multiple Choice

Which diagram has the most CO2?

• Diagram A

• Diagram B

• They both have the same.

Multiple Choice

Which diagram has the most N2 (Nitrogen)?

• Diagram A

• Diagram B

• They both have the same amount.

Multiple Choice

Which diagram has the highest levels of Ammonia (NH3)?

• Diagram A

• Diagram B

• The both have the same amount.

Multiple Choice

Which diagram has the highest level of Oxygen (O2)?

• Diagram A

• Diagram B

• They both have the same.