Transcript 8th Grade Science FOCUS on Achievement

Volusia District Science Office
week
8
SC.6.E.7.3 – Air Temperature
1 El Niño is a weather pattern in which the normally cool
ocean currents of the tropical Pacific Ocean become
warmer. How does this most likely affect weather along the
West Coast of the United States?
A. It does not affect weather in West Coast states.
B. It makes summers colder
C. It makes winters warmer
D. It makes storms more predictable
SC.6.E.7.3 – Air Pressure
2 An area of high pressure will most likely result in which type
of weather?
A. Snowy weather
B. Stormy weather
C. Cloudy weather
D. Clear weather
SC.6.E.7.3 – Bodies of Water
3 Cities along the coast tend to have warmer winters than inland
cities. Which is most responsible for the moderate climate of
coastal cities?
A. The ocean cools more slowly than land.
B. The water reflects more of the Sun’s light than the land.
C. The dry coastal air cannot hold as much heat as inland
air.
D. Winds from the ocean push cold weather away from the
coast.
SC.6.E.7.3
Predicting Weather
1. C
2. D
3. A
Overall Summary:
Both global and local patterns can influence the weather. Some
factors include temperature, air pressure, wind direction and
speed, humidity, and precipitation. Generally weather is a
consequence of the movement of warm and cool air through
convections currents. Hot air rises creating a low pressure area
and cool air sinks creating a high pressure area.
Discussion?
SC.6.E.7.6 – Weather and Climate
4
Sally is looking out her window and sees a lot of thick dark grey
clouds moving towards her. She realized that almost every day during
the summer this happens around 3 o’clock in the afternoon. Which of
the following best describes the phenomenon sally is observing?
A. Climate because it covers the entire sky.
Weather because it is only true for her area.
C. Weather because it happens at the same time.
D. Climate because it happens every day during the summer.
B.
SC.6.E.7.6 – Properties of a Climate
5
The western United States contains some desert climate areas just
east of the Sierra-Nevada Mountains. These places, on average,
receive very little rain throughout the year and the air is almost
completely dry. Which of the following best explain why this is a
description of a climate?
A. It is based on long-term, averaged, observations.
It is based on short-term, day-to-day, observations.
C. It is based on the humidity of the air at specific times and
dates.
D. It is based on observations from the people who live in that
area.
B.
SC.6.E.7.6 – Weather and Climate
6 Which of the following best describes the difference between
weather and climate?
A. Climate is short term and over a large area. Weather is
long term and local.
B. Climate is long term and over a large area. Weather is
short term and local.
C. Climate is long term and local. Weather is short term
and over a large area.
D. Climate is short term and local. Weather is long term
and over a large area.
SC.6.E.7.6
Weather and Climate
4. B
5. A
6. B
Overall Summary:
Weather is short-term and happens over a relatively small area. The
climate of an area is based on data such as daily weather, humidity,
precipitation, air temperature, etc; it is averaged over a long period of
time.
Discussion?
SC.6.E.7.4 – Interactions among Earth’s
Systems
7 The sun evaporates ocean water which eventually turns into
clouds. The clouds move over land and release the water as
rain. The rain finally moves down rivers and streams back
into the ocean. Which of the following interactions is NOT
listed above?
A. Hydrosphere to Atmosphere
B. Geosphere to Hydrosphere
C. Atmosphere to Geosphere
D. Biosphere to Geosphere
SC.6.E.7.4 – Interactions among Earth’s
Systems
8 The interaction between the cryosphere and the
hydrosphere have the ability to dramatically change our
global climate. Which of the following events shows an
interaction between the cryosphere and the hydrosphere.
A. A large iceberg melting in the ocean.
B. Evaporated water condensing to form clouds.
C. Trees releasing oxygen into the environment.
D. The Himalayan Mountains being pushed upward.
SC.6.E.7.4 – Interactions among Earth’s
Systems
9
Trees take in water, carbon dioxide, and nutrients in order to live
and reproduce. Their roots help to hold soil in place and slow
down erosion while their leaves can stop direct sunlight from
reaching the ground. Of all these functions and uses, which
shows an interaction between the geosphere and the biosphere?
roots slowing down erosion
B. leaves stopping direct sunlight
C. trees taking in nutrients from water
D. carbon dioxide being absorbed from the air
A.
SC.6.E.7.4
Interactions among Earth’s Systems
7. D
8. A
9. A
Overall Summary:
All of Earth’s systems interact in some fashion. The hydrosphere
includes all of the bodies of water on the surface. The geosphere
is the land. The cryosphere is mainly at the poles. The biosphere
includes areas where life exists. The atmosphere covers all the
others.
Discussion?
SC.6.E.7.9 – Atmosphere and Life
10
Ozone is a pale blue gas at standard conditions. Ozone is one of the
most toxic inorganic substances known, causing flexible materials,
such as lung tissue, to become extremely brittle. Even though it is
dangerous at ground level, ozone is important to life on Earth. Why
is ozone important to life on Earth?
Ozone made in laboratories cools refrigerators and air
conditioners.
B. Ozone in the troposphere destroys excess atmospheric carbon
dioxide.
C. Ozone in the atmosphere absorbs harmful ultraviolet
radiation.
D. Ozone in the atmosphere absorbs energy that is reradiated by
Earth.
A.
SC.6.E.7.9 – Atmosphere Composition
11 Which layer of the atmosphere contains most of the weather
and water vapor?
A. stratosphere
B. troposphere
C. mesosphere
D. ionosphere
SC.6.E.7.9 – Layers of the Atmosphere
12 Which characteristic best defines one layer of the
atmosphere from another?
A. density
B. composition
C. temperature
D. convection currents
SC.6.E.7.9
Properties of the Atmosphere
10. C
11. B
12. C
Overall Summary:
The atmosphere is a mixture of gases that surround Earth and
protects life from harmful ultraviolet rays through the ozone
layer. All other layers of the atmosphere are separated by
temperature rather then density or composition. Generally the
temperature decreases as altitude increases in the troposphere.
All weather and water vapor are found in the troposphere.
Discussion?