Help for school project

I would try a barometer/altimeter. It might be sensitive enough to detect a sudden change in altitude.

The TDK ICP-10125 is accurate to 0.0001 PSI
The STMicroelectronics LPS25HBTR is accurate to 0.003 PSI.

They are surface-mount device so look for a "breakout board" or "module" to simmplify connections.