"Elementary Science"

Demonstrate refraction and internal reflection.

Perfect for Demonstrating Electrostatics

Demonstrate the Relation of Length, Area, and Volume

Package of 100, 300 or 500 interlocking cubes in 10 standard colors. An activities booklet is included.

58 Colorful Metric Weights.

This zinc-plated stamped steel clamp has a plastic coated round jaw.

Create a balanced ecosystem in your aquarium with the addition of these small, freshwater algae eaters. They reproduce rapidly, laying their eggs on the glass sides of the aquarium.

Ideal for handling preserved specimens, the wide clamping jaws are flattened and have serrations to prevent slipping.

Stock up on the classroom essentials you use most for every classroom activity.

Cut and strip all types of wire, cut bolts in a wide range of sizes, and crimp solderless connections with this tool that has cushion grips.

Glass lenses mounted on metal frames with bakelite handles.

Shelf Life (months): Indefinite
Storage: Green

Dehydrated Preserved

Introduce the concept of a simple electric circuit and show that a wire can carry electricity and how a switch can start and stop the current flow.

Simulate the cyclonic motion of a twister.

Clear polyethylene storage bags lock shut when edges are sealed together.