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.
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.