• 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?