Earths Water

1
Earths Water

• Date
• Time
• Question Where is most of Earths water?
• Prediction
• Vocabulary
• A. Evaporation water heats changing from a
  liquid to a gas water vapor.
• B. Condensation water vapor cools changing into
  water droplets or ice crystals.
• C. Precipitation water droplets or ice
  crystals fall back to Earth as rain, snow, sleet,
  hail, or dew.
• VI. Materials 6 bottles, eyedropper, graduated
  cylinder
• VII. Procedures math challenge, water cycle
  diagrams
• VIII. Observations
• IX. Conclusion

2
VIII. Observations

• Locations of Earths water
• Percent of Earths Water

• How does the amount of salt water compare to the
  amount of fresh water?

3
Model Diagram Draw a picture of the water cycle
that is set up in class. Label your drawing as
follows land, Sun, body of water, cold
atmosphere. Use arrows to show how water is
moving through the model.E. Label Model Diagram
and The Water Cycle to show where evaporation,
condensation, and precipitation happen on Earth.
4
Uneven Heating

• Date
• Time
• Question How does air move?
• Prediction
• Vocabulary
• A. Convection currents the rising and sinking
  of matter in a circular pattern.
• B. Wind movement of air that happens because of
  differences in air pressure caused by temperature
  differences.
• VI. Materials lamp, globe, thermometers
• VII. Procedures globe temperatures, temperatures
  for playground surfaces
• VIII. Observations
• IX. Conclusion

5
VIII. Observations

• A. Uneven heating of the Earth

• Draw and label the globe demonstration.
• Circle the greatest change in temperature in red.
  Why did this location on the globe warm the
  most?
• Circle the smallest change in temperature in
  blue. Why did this location on the globe warm
  the least?
• Do you think the uneven heating of the Earth
  affects weather patterns?

6
B. Uneven heating of playground surfaces

• Controlled Variables thermo. on surface, thermo.
  in the sun, shade the bulb
• Independent Variable surface type
• Dependent Variable temperature

4. Does the surface type affect air
temperature? 5. Draw a map of the playground.
Label all surfaces. Draw arrows to show how air
would move if there were convection currents.
7
Playground Map
8
Water and Air Temperature

• Date
• Time
• Question Does the ocean affect air temperature
  and weather conditions?
• Prediction
• Vocabulary
• A. Tempered describes air that is warmed in
  winter and cooled in summer because it is near a
  large body of water.
• VI. Materials large/small containers, water,
  food coloring, thermometer, straw
• VII. Procedures deep current demo., surface
  current demo., and air temperature demo.
• VIII. Observations
• IX. Conclusion

9
A. Deep currents demo. (draw a picture of the
demo.)
1. Does warm water rise or fall? Does cold water
rise of fall? 2. How are deep ocean currents
similar to moving air? 3. What is the effect of
these deep convection currents in the ocean?
10
B. Surface currents demo. (draw a picture of the
demo.)

• What happened to the food coloring when we blew
  across the surface?
• Imagine that the water at the surface is warmer
  at the end where we placed the food coloring and
  cooler at the other end. What is happening to
  the temperature of the water at the surface as we
  blow across the tub?
• What type of current is wind?
• What happens to the warmer surface water at the
  equator when wind blows across the ocean?

11
C. Air temperature demo. (draw a picture of the
demo.)

• Which container has the highest air temperature?
• Which container has the lowest air temperature?
• How could you make the air temperature in any of
  the containers increase? Decrease?
• What happens to the temperature of the air over a
  warm water ocean current?
• How do places at higher latitudes (far from the
  tropics) get warm enough to support life?

12
Air Pressure

• Date
• Time
• Question How does elevation affect air pressure?
• Prediction
• Vocabulary
• A. Air Pressure the weight of air pushing on an
  area.
• B. Barometer a tool that measures air pressure.
• Materials ruler, thread, balloons, cup, water
  bottle, index card, and water
• Procedures air pressure demo./investigations
• Observations
• Conclusion

13
VIII. Observations

• Under Pressure Demo.
• 1. Draw a picture of the demo. and label the
  following air particle, sea level, and mountain
  top.
• 2. Which book (air particle) has the greatest
  amount of pressure exerted on it? Why?
• 3. Draw a picture of the demo. and label the
  following sea level, mountain top, air
  particles.
• 4. Does an air particle at sea level have more
  or less air pressure exerted on it than an air
  particle on top of a mountain? Why?

14
(Purple questions for class
discussion, do not write in notebook)B. Balloon
Balance

• What happened to the ruler when the blown-up
  balloon was added?
• Does air have weight? How do you know?

• C. Whats in the Cup? Part 1 2
• What happened to the packing peanut when you
  pushed the cup to the bottom of the bowl?
• What happened to the paper towel inside the cup
  when you pushed the cup to the bottom of the
  bowl?
• Does air take up space? How do you know?
• Pressure Pursuit Part 1 2
• Did the water pour out of the cup when you
  removed your hand from the index card?
• Did the water pour out of the hole in the bottom
  when the cap was tightened?
• Does air exert pressure in all directions? How
  do you know?
• Balloon Rocket Demo.
• When the balloon was blown-up, did the air
  pressure increase or decrease?
• How does air pressure affect air movement?

15
Tracking Hurricane Andrew

• Date
• Time
• Question What causes severe weather?
• Prediction
• Vocabulary
• A. Hurricane a dangerous storm made up of
  swirling bands of thunderstorms with wind speeds
  of at least 74 mph that forms over warm ocean
  water.
• B. Tornado a rotating column of air that
  extends from a thunderstorm to the ground.
• Materials hurricane tracking map, calculator
• Procedures Video, Reading, Tracking Hurricane
  Andrew
• Observations
• Conclusion

16
VIII. Observations

• Video Notes

17
B. Tracking Hurricane Andrew
1. What did you observe about the path of
Hurricane Andrew (direction it moved,
land it made contact with, any changes in
direction, etc. ) 2. Where did Hurricane Andrew
form (over land or water, in the tropics or
poles)? 3. What happened to the wind speed of
Andrew as it approached Florida? Explain. 4.
What happened to the wind speed as the air
pressure inside the eye increased? As the
air pressure decreased?
18
Forecasting the Weather

• Date
• Time
• Question How do meteorologists forecast the
  weather?
• Prediction
• Vocabulary
• A. Meteorologist someone who forecasts the
  weather.
• B. Weather Forecast a prediction of weather
  conditions.
• Materials weather equipment info. sheets,
  weather symbols worksheets
• Procedures investigate weather equipment
  interpret weather symbols
• Observations
• Conclusion

19
VIII. Observations

• Interpreting Weather Symbols
• Weather Map
• Percent cloud cover in Detroit, Michigan 25
• Atmospheric pressure in Oklahoma City, Oklahoma
  1012 mb
• Wind direction and speed in Bismarck, North
  Dakota West _at_ 25 mph
• Air temperature in Las Vegas, Nevada 90 F
• Present weather in Boston, Massachusetts
  Light rain
• Draw the weather symbol pressure 1022 mb, air
  temp. 73 F, dew point temp. 49F, wind speed
  10 mph from north, and the cloud cover 50.

Cloud Cover
Atmospheric Pressure
Air temperature
75
1012
..
Current Weather
61
Dew Point
Wind Direction
Wind Speed
20

• Equipment Expert Questions
• Which piece(s) of equipment are you studying?
• What do(es) your piece(s) of equipment measure?
• List the steps you would follow to use your piece
  of equipment
• Draw a picture of the equipment.

21

• Weather Equipment Organizer