Help students understand the meaning of fluid pressure and pressure reduction. A Harbottle is a round glass container with a balloon inside and stretched over its opening. A hole in the flattened base is fitted with a rubber stopper. Students are amazed when the balloon remains inflated inside the bottle even though it is not tied off or sealed.
Includes instructions. Grade 7 and up. Two latex balloons included.
This superb chemistry set features 350 mind-boggling experiments!
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
This classic device is used to demonstrate the conservation of mechanical energy.
This is a classic demonstration toy of the powers of magnetic fields!
Great reference card for chemistry and physics students.