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Activity
NOAA

Noaa: Be a Citizen Weather Reporter [Pdf]

For Students 9th - 10th
Report the local weather to your community after deciding which data to collect and reading some of the National Weather Service's forecasting tips for amateur weather reporters.
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Interactive
Concord Consortium

Concord Consortium: Molecular Workbench: Barometric Formula

For Students 9th - 10th
Adjust the altitude and temperature in this simulation to observe how gas pressure is affected by these changes.