uneven heating of the earth causes air movements. these air movements are also called convection...
TRANSCRIPT
• Uneven heating of the Earth causes air movements. These air movements are also called convection currents.
How does temperature affect the movement of air?
• Examples that can be used.
• If _______ then, _______ because_____________.
• I think that ________ because ________________.
• Examples that can be used:
• If the air is warm then, the air will move up because when I go upstairs in my friends house it is always warmer.
• I think that the air is warmer on top because it is closer to the sun.
String
Paper
Heat source
Spiral
Scissors
String
Center 1Hot Plate
Pan with Water
Center 2Bowl of Ice Water
Center 3Bowl of Tap Water
Center 4Heat Lamp
On/OffHold the spiral above the lamp
while it is on. Then, turn the lamp off while still holding the spiral
above it.
Center 5Box Covered
With Foil
Center 6Heat Lamp On
Kit Inventory For Centers
Air pressure
Density
Convection current
We want to test how different air temperatures affect the movement of the
air.
What are we going to keep the same? (control/constants)
What are we going to change? (independent variable)
What are we going to measure? (Dependent variable)
• First, write a prediction, what do you think will happen with the spiral.
• Second, hold your spiral above the center's object and count to 30.
• Third, observe and discuss with your neighbors what happened with the spiral.
• Next, record your observations on your collecting data chart. Please be specific, use lots of descriptive words.
• Finally, wait quietly until the teacher tells you to move to the next station.
Operational Plan
Boiling Water
Ice water Tap waterHeat lamp on/off
Box covered with foil
Lamp on
Write your prediction
After, write your observation
At which centers did your spiral move?
What did the objects have in common when your spiral moved?
What caused the spiral to move?
Claims Evidence
I claim that.....I know this because....
• Today we wondered______________. We predicted that _______________. We now know that ______________. We know this because ______________.
• Today our big idea was _______________.
• How does what we learned today apply to the big idea?
• What other questions do you have about this topic?