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Amazing Marshmallows
Source Institutions
In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-482.png?itok=PiNmUbsG)
Potato Straw
Source Institutions
In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-481.png?itok=OSjpHEQT)
Erupting Fizz
Source Institutions
This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-477.jpg?itok=LhstA8Cn)
Balloon Kebabs
Source Institutions
In this demonstration, learners observe the effects of density and pressure by attempting to make "balloon kebabs." Learners will try to insert a wooden skewer all the way through an inflated balloon
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-476.png?itok=hbOozP25)
Lager Lamp
Source Institutions
In this demonstration, adult learners create a lava lamp using beer and nuts! Use this pub-themed activity to demonstrate the effects of buoyancy and bubbles.