Description
Think you’re stronger than the air around you? Think again! When the air between these hemispheres is removed, the only thing keeping them together is the atmosphere around you, more than enough pressure to thwart even your strongest students! Use these hemispheres to demonstrate air pressure and vacuums. They are made of flexible synthetic rubber.
• 50 mm (2″) Dia.
AmSci Exclusive
Teacher's Guide Included
