Young scientists know it is hotter along the equator, but why is it also rainier? Through the process of completing two experiments and a worksheet, scholars discover the answer is the intertropical convergence zone. First, they demonstrate that heated air rises. Then, they create their own convection stream to drive a propeller. Finally, they transfer the newly gained knowledge to the larger scale of global air circulation.

Concepts

the equator, the atmosphere, wind, convection, seasonal change, the troposphere, latitude and longitude

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Additional Tags

science

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Instructional Ideas

• Complete the first experiment as a demonstration with younger pupils rather than encouraging them to light things on fire

Classroom Considerations

• Activities work best with pairs of pupils
• Use care with open flames and matches
• Activity one suggests disabling smoke detectors; verify with the building supervisor or head of school if this is possible and the proper procedure to get approval

Pros

• Uses easily obtained, common supplies
• Highly engaging experiments
• Connects many ideas that are normally taught in seclusion

Cons

• None

Common Core

RST.6-8.3 RST.6-8.4 RST.9-10.3 RST.9-10.4 RST.11-12.3 RST.11-12.4