"The Mystery of Lyle and Louise"

Help kids forget their pain with these fun designs.

Primer balances are the perfect scales for budding scientists.

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

Set of nine brass hooked weights ranging from 10 to 1000 g, perfect for classroom or lab experiments. Supplied in a wooden block for easy storage.

For your Electrostatic Needs!

Various sizes. Packages of 12.

By choosing an ELGA water purification system, you are making an investment in quality, reliability and value.

The O₂ gas sensor measures oxygen concentration in air, and is temperature compensated for use in different environments. It has a wide measurement range, allowing it to be used to study human and cellular respiration. The O₂ gas sensor also includes a 250 ml bottle that can be used to study the rusting of iron, or as a respiration chamber for monitoring plants and insects.

Educational Materials, Application: Physics, 1½" dia., with ¼" hole (½" wide)

Use as a starter kit or a refill.

The CENTRA has revolutionised the way that large volumes of pure water are produced, stored and distributed

Bandages come with the preferred and patented Stat Strip® easy opening wrapper that nurses request.

Economical noncontact thermometer fits right in your pocket!

Weight Sets with hooks on both ends, available in brass or steel.

By choosing an ELGA water purification system, you are making an investment in quality, reliability and value.

This hole punch has adjustable hole positions with accuracy and durability.