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Uneven heating of the Earth causes air movements. These air movements are also called convection currents.

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Presentation on theme: "Uneven heating of the Earth causes air movements. These air movements are also called convection currents."— Presentation transcript:

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2 Uneven heating of the Earth causes air movements. These air movements are also called convection currents.

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4 How does temperature affect the movement of air?

5 Examples that can be used. If _______ then, _______ because_____________. I think that ________ because ________________.

6 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.

7 String Paper Heat source Spiral Scissors String

8 Center 1 Hot Plate Pan with Water Center 2 Bowl of Ice Water Center 3 Bowl of Tap Water Center 4 Heat Lamp On/Off Hold the spiral above the lamp while it is on. Then, turn the lamp off while still holding the spiral above it. Center 5 Box Covered With Foil Center 6 Heat Lamp On Kit Inventory For Centers

9 Air pressure Density Convection current

10 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)

11 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

12 Boiling WaterIce waterTap water Heat lamp on/off Box covered with foil Lamp on Write your prediction After, write your observation

13 At which centers did your spiral move? What did the objects have in common when your spiral moved? What caused the spiral to move?

14 ClaimsEvidence I claim that.....I know this because....

15 Today we wondered______________. We predicted that _______________. We now know that ______________. We know this because ______________.

16 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?


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