Transcript Ch. 4 Atmosphere - Warren County Public Schools

Ch. 4 Atmosphere
Section 1 Review
1. Earth’s Atmospherethin layer that keeps the
Earth from getting too
hot or too cold.
Section 1 Review
2. Nitrogen makes up the
greatest percentage of Earth's
atmosphere 78%. Oxygen
makes up 21%.
Section 1 Review
3. Solids such as dust, salt
and pollen particles can
also be found in the
atmosphere.
Quiz time: Fill in the answer
for question 1 pg. 46
1. Which is the most accurate
fraction for the amount of oxygen
contained in Earth’s atmosphere?
a. 1/5 b. 2/3 c. 3/4
Quiz time: Fill in the answer
for question 2 pg. 46
2. List 3 solids found
in the Earth’s
Atmosphere.
Quiz time: Check your answer
1. The most accurate fraction for the
amount of oxygen contained in Earth’s
atmosphere is 1/5 (20%).
* 2/3 (66%) and 3/4 (75%)
Quiz time: Check your answer
2. 3 solids found in the Earth’s
Atmosphere are dust, pollen,
and salt.
Section 1 Review-Layers of
the Earth
4. The troposphere is
the layer of the
atmosphere nearest
to Earth's surface.
Section 1 Review-Layers of
the Earth
5. The next layer is the
stratosphere and this layer
contains the highest
concentration of ozone.
Section 1 Review-Layers of
the Earth
6. If the ozone layer disappeared, life on
Earth would be exposed to higher
concentrations of ultraviolet radiation.
Section 1 Review-Layers of
the Earth
7. Some scientists hypothesize
that Earth's ozone layer is
being damaged by
chlorofluorocarbons .
Section 1 Review-Layers of
the Earth
8. Chlorofluorocarbons may be
harming the ozone layer by
destroying ozone molecules
Quiz time: Fill in the answer
for question 3 pg. 47
3. What are the two
lower layers of the
atmosphere?
Quiz time: Fill in the answer
for question 4 pg. 47
4. In what layer of the
atmosphere do
satellites orbit?
Quiz time: Fill in the answer
for question 3 pg. 47
3. The two lower layers of the atmosphere are
the troposphere and the stratosphere.
Quiz time: Fill in the answer
for question 4 pg. 47
4. The layer of the
atmosphere where
satellites orbit is the
exosphere.
Section 1 Review-Layers of
the Earth
9. Electrically charged particles are found
primarily in the Ionosphere, the layer located
within the Mesosphere and Thermosphere
(hottest and thickest layer).
Section 1 Review-Layers of
the Earth
10. In the Ionosphere radio
waves are absorbed during the
day and reflected at night.
Section 1 Review-Layers of
the Earth
11. Temperatures in the thermosphere
and exosphere are very warm (high
temperature).
Section 1 Review-Layers of
the Earth
12. The exosphere blends into
outer space and this is
where satellites orbit.
Quiz time: Fill in the answer
for question 5 pg. 48
5. Which is the hottest and thickest layer:
Mesosphere, thermosphere or ionosphere?
Quiz time: Fill in the answer
for question 6 pg. 48
6. What is reflected by the
ionosphere at night but not during
the day?
Quiz time: Fill in the answer
for question 5 pg. 48
5. The Thermosphere is the
hottest and thickest layer of
the atmosphere.
Quiz time: Fill in the answer
for question 6 pg. 48
6. AM radio waves are
reflected at night but not
during the day.
Section 1 Review-Layers of
the Earth
13. In general, atmospheric pressure is
greatest near Earth's surface and
decreases as you move upward away from
sea level.
Section 1 Review-Layers of
the Earth
14. There are fewer molecules of
air at high elevations, so air
pressure is less.
Quiz time: Fill in the answer
for question 7 pg. 49
7. Why do the air molecules at
the bottom of the figure exert
more pressure than those at the
top?
Quiz time: Fill in the answer
for question 8 pg. 49
8. What is the air
pressure at an
altitude of 5 km?
Quiz time: Check your answer
to question 7 pg. 49
7. Air molecules at the bottom exert more
pressure than those at the top because
they are densely packed.
Quiz time: Check your answer
to question 8 pg. 49
8. Air pressure at 5 km
would be 400 millibars of
pressure.
Read pg. 50-51 and then
answer questions 9-14
Quiz time: Fill in the answer
for question 9 pg. 50
9. Why do different layers of
Earth’s atmosphere have
different temperatures?
Quiz time: Fill in the answer
for question 10 pg. 50
10. Look at the graph of atmospheric
temperatures. Does the thermosphere
increase or decrease with altitude?
Quiz time: Fill in the answer
for question 11 pg. 50
11. Are the air molecules in the troposphere
warmed mainly by the Sun’s heat or by the
heat from the Earth’s surface?
Quiz time: Fill in the answer
for question 12 pg. 51
12. What does the
ozone absorb?
Quiz time: Fill in the answer
for question 13 pg. 51
13. Name one way
CFCs can enter the
atmosphere?
Quiz time: Fill in the answer
for question 14 pg. 51
14. Where is the
ozone hole
located?
Quiz time: Check your answer
for question 9 pg. 50
9. Different layers of Earth’s atmosphere have
different temperatures because some layers
have gases that absorb the Sun’s energy and
other layers do not.
Quiz time: Check your answer
for question 10 pg. pg. 50
10. The temperature in the
thermosphere increases
with altitude.
Quiz time: Check your answer
for question 11 pg. 50
11. The air molecules in the
troposphere are warmed by
the heat from Earth’s
surface.
Quiz time: Fill in the answer
for question 12 pg. 51
12. Ozone absorbs
ultraviolet radiation.
Quiz time: Fill in the answer
for question 13 pg. 51
13. CFCs can enter the atmosphere by
leaking from appliances and when
products that contain CFCs are not
disposed of properly.
Quiz time: Fill in the answer
for question 14 pg. 51
14. The ozone hole is
located over Antarctia.
Great work! Next complete
questions 1 and 2 on pg. 52
and then complete the
vocabulary for section 1
Section 2
1. The Sun provides most of
Earth’s energy. This energy
drives winds and ocean currents.
Section 2
2. The Sun provides most of
Earth’s energy.
3. This energy drives winds and
ocean currents.
Section 2
4. When Earth receives energy
from the Sun: some energy is
reflected back into space, some
is absorbed by the atmosphere,
and some is absorbed by land
and water on Earth’s surface.
Quiz time: Fill in the answer
for question 1 pg. 53
1. What happens to
most of the Sun’s
energy?
Quiz time: Check the answer to
question 1 pg. 53
1. 65% of the Sun’s energy
is absorbed by the Earth’s
surface.
Section 2
5. Heat is energy that flows from
an object with a higher
temperature to an object with a
lower temperature.
Section 2
6. Heat is transferred by
radiation, conduction
and convection.
Section 2
7. Radiation is the
transfer of energy in the
form of rays or waves.
Section 2
8. The transfer of energy
that occurs when
molecules bump into
one another is called
conduction.
Section 2
9. Convection is the transfer of heat
by the flow of material. By
circulating or moving heat
throughout the atmosphere heat is
transferred.
Quiz time: Fill in the answer
for question 2 pg. 54
2. How do different air
temperatures form a
convection current?
Quiz time: Check the answer to
question 2 pg. 54
2. Cooler denser air sinks while
warmer less dense air rises, this
causes convection currents.
Section 2
10. The constant cycling of water
between the hydrosphere (water
on Earth’s surface) and the
atmosphere is known as the
water cycle.
Section 2
11. Energy from the Sun
causes water from the
Earth’s surface to change
from a liquid to a gas in a
process called evaporation.
Section 2
12. Condensation occurs
when water vapor cools
and changes back into
liquid water.
Section 2
13. Precipitation occurs
when water drops form in
clouds and become too
large to be held in the air,
they fall back to the Earth as
rain, snow or sleet.
Quiz time: Fill in the answer
for question 3 pg. 55
3. Circle the process which occurs
when water falls as rain, snow, or
sleet. What is the process?
Quiz time: Check the answer to
question 3 pg. 55
3. Precipitation is the
process where water falls
back to Earth.
Quiz time: Fill in the answer
for question 4 pg. 55
4. What process forms
clouds?
Quiz time: Fill in the answer
for question 4 pg. 55
4. Clouds are formed
by condensation.
Great work! Next complete
questions 1,2 and 3 on pg. 56
and then complete the
vocabulary for section 2