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 simple but amusing magnetic toy will keep you busy for hours!
This classic desk toy will keep you amused!
This kit focuses on teaching children about electricity and how electronic devices work!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
This caffeine molecule mug makes an excellent gift!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!