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.
A massive mounted set of 100 rocks and minerals found in the US,
This microscope is so versatile you can even take it with you on a job site!
Build your own 10 inch kaleidoscope with this great kit!
Get this great introductory chemistry kit for your favorite young scientist!
Build more than 20 solar-powered models to learn about how solar cells convert energy from sunlight into mechanical energy.
Comprehensive collection of 30 fossils.