Best DIY Vacuum Chamber for Marshmallows (Maybe)

In this experiment place marshmallows in a DIY vacuum chamber you can lower the pressure around the marshmallow which causes the air inside them to leave, expanding the marshmallow, and then when the pressure increases in the jar the marshmallows quickly deflate and look old and wrinkled. Learn how to make a simple vacuum pump and explore pressure volume relationships in this fun and simple experiment.

Here are some more fun experiments!
Best Conservation of Momentum Mind Bender! (Part 1)