Weather Review

1
Weather Review
2
Directions

• Put a proper heading on a sheet of paper.
• Read through each slide and record the answer to
  each question written in red in your notebook.
  There are 14 questions.

3
The hydrosphere refers to all of the water that
covers Earth. More than 2/3 of Earth is covered
by water. The large amount of water on Earth is a
unique feature that clearly distinguishes our
"Blue Planet" from other planets in our solar
system.

• 1. The surface of Earth is
• covered by a relatively
• thin layer of water called
• the
• a. crust
• b. hydrosphere
• c. mantle
• d. atmosphere

4
It takes Earth 365 days (1 year) to revolve
completely around the sun (from point A back to
point A).

• 2. The diagram below shows Earth, as viewed from
  space, as it moves around the Sun. approximately
  how long does it take Earth to move from position
  A to position B?
• a. 1 year
• b. 1 day
• c. 6 months
• d. 12 hours

5
3. The length of a year is equivalent to the time
it takes for one

• a. rotation of Earth
• b. rotation of the Sun
• c. revolution of Earth around the Sun
• d. revolution of the Sun around Earth

6

• Think about your past experiences with the summer
  heat and then read the following scenario.
• Youre planning on spending the day at the fair
  with a friend. You listen to the weather forecast
  before you get dressed and learn that its going
  to be in the high 80s with no precipitation and
  little cloud cover.
• Does the weather forecast affect whether youre
  going to wear a sweatshirt or t-shirt? How about
  the color of your shirt?
• Use this information to answer the question on
  the following page.

7

4. When placed in direct sunlight, which object
will absorb the most visible light energy?
a. a piece of clear glass b. a snowball
c. a shiny mirror d. a black sweater

• Absorb to take in and not reflectExample The
  dishcloth absorbed the water.

8
The changing of liquid water from oceans, lakes,
and rivers into a gas is called evaporation.
Evaporation takes place when water molecules near
the surface of the water acquire enough energy
from the Sun to escape into the air as water
vapor.

• 5. Water vapor is water in the
• form of a
• a. Liquid
• b. Gas
• c. Solid
• d. Ghost

9

• 6. Water at 20C in an uncovered pan is
  evaporating very slowly. What could be done to
  the water to make it evaporate more quickly?
• a. Cover it.
• b. Heat it.
• c. Place it in the dark.
• d. Put salt in it.

10
7. Which title best describes the processes shown
in the diagram to the right?

• a. The Rock Cycle
• b. The Water Cycle
• c. Plate Tectonics
• d. Chemical Changes

11
Condensation is the changing of a gas to a
liquid. In the atmosphere, condensation is
usually the result of air being cooled. Air can
be cooled when it is pushed upward over mountains
by winds

• 8. As winds push air higher, the temperature of
  the air
• a. Gets cooler
• b. Gets warmer
• c. Stays the same

12

Water vapor in the air can condense into droplets
to form clouds. Clouds of tiny ice crystals will
form if the temperature falls below the freezing
point of water.

• 9. Condensation is
• a. When water in solid form changes into water in
  gas form
• b. When water in liquid form changes into water
  in gas form
• c. When water in gas form changes into water in
  liquid form
• d. When Water in solid form changes to water in
  liquid form

13
Wind the horizontal movement of air

• Air moves from one place to another in the
  atmosphere because of unequal heating of Earth.
• Air moves from areas of high pressure to areas of
  low pressure.
• An air mass is a large region of the atmosphere
  in which the air has similar properties.
• The movement of air masses can cause changes in
  the weather

14
10. The movement of an air mass over Earths
surface causes

• a. earthquake activity
• b. local weather changes
• c. global warming
• d. ecological succession

15
Wind Power

• Wind is useful as a power source. It is used to
  run machinery that produces electricity, and
  grinds grain and pumps water.

16
Wind Energy

• 11. Draw a diagram of someone using wind to save
  energy and write a caption for your drawing.

17
Weather Maps

• Weather maps are used to record, monitor, and
  predict weather.
• A weather system can be followed as it crosses
  the country. The information can be used to
  predict weather changes in the path of an air
  mass.

18
12. Meteorologists use weather maps to

• a. Predict the weather
• b. Record the weather
• c. Monitor the weather
• d. All of the above

19
Weather Satellites

• Pictures taken from satellites in space also help
  scientists follow weather patterns and make
  predictions. Satellite photographs show large
  portions of Earth and show fronts and storms.
• Many people and industries rely on accurate
  weather forecasts, but no one can be exactly sure
  how the weather will change.

20
Weather Forecasting

• 13. Weather forecasts are
• more accurate today than
• in the past due to
• (1) global warming
• (2) air-quality control
• (3) plate tectonics
• (4) use of images from space

21
14. Record the following graphic organizer in
your notebook. As you read about the following
weather instruments, record what they measure.
Thermometer
Barometer
Weather Instruments
Wind Vane
Anemometer
22
Wind Vane

• A wind vane indicates the direction of wind
  movement. The tip of a wind vane points in the
  direction the wind is blowing from.

23
Barometer

• Air pressure is measured with a device called a
  barometer.
• There are two types of barometers. They are the
  aneroid barometer and the mercury barometer.

24
Aneroid Barometer

• This is an aneroid barometer. The word aneroid
  means without liquid, so this type of barometer
  does not contain any liquid.

25
Mercury Barometers

• This is a picture of a mercury barometer. It
  uses liquid mercury and works in the same way as
  a thermometer. As the air pressure increases, so
  does the liquid mercury.

26
Thermometers

• Air temperature is measured with a thermometer.
  Fahrenheit, F, and Celsius, C, temperature scales
  are commonly used.

27
Anemometer

• An anemometer measures wind speed and is made of
  cups spinning on a shaft. The faster the wind
  blows, the faster the cups spin the shaft.

28
You are finished with this activity. Show
your answers to the teacher but do not rip your
paper out of your notebook.