"The Mystery of Lyle and Louise"

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.

Various sizes. Packages of 12.

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

One-piece polyethylene pipettes are unbreakable. Sterile pipettes are individually wrapped.

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.

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

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

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

Economical noncontact thermometer fits right in your pocket!

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

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

When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.

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

Harvard Trip balances are two-pan balances designed for comparative weighing.