The molecules and atoms vibrate at higher temperatures and begin to push apart from each other. This phenomenon is known as thermal expansion. Simply heat the brass ball for two minutes. This will cause the ball to expand; hence it will not fit through the ring. When the ball cools down, it will once again fit smoothly through the ring. Great for the classroom or the home laboratory!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
This project book and sample kit introduces you to shape-memory alloy technology!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Great reference card for chemistry and physics students.
Learn how solar cells transform light into electrical energy with this great kit!