"The Mystery of Lyle and Louise"

This kit demonstrates the process of starch digestion.

Superior Grade Rubber Offers Softness, Resiliency, and Durability.

Squeeze and Study

Glass thermometers with Enviro-Safe Black liquid.

Useful for metal filing or glass cutting.

Ceramic Ring Magnets have a high resistance to demagnetization and don't need a keeper.

Individual spherical glass lenses.

Individual spherical glass lenses.

Individual spherical glass lenses.

Makes demonstrations viewable by the entire classroom.

Ideal selection for use with a ray box.

All Types and Sizes for all Optical Applications.

Provide a convenient way to illustrate the properties of lenses to students.

This replacement high-concentration diamond wheel is six inches in diameter.

Economical noncontact thermometer fits right in your pocket!

These ceramic ring magnets have an inside diameter of 35 mm and an outside diameter of 45 mm.