These semicircular plastic cells are perfect for observing the refractive properties of different liquids such as water, oil, alcohol, or other transparent liquids. The refraction cups are made of a clear, durable plastic.
Diameter: 4-3/4" (120mm), Depth: 1-3/16" (30mm), Thickness: 1/16" (1.5mm)
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
Find the hidden crystals when you open your own geodes from this fun set.
Build your own 10 inch kaleidoscope with this great kit!
This genuine meteorite is great for the rock collector in your family!