"tube coolers"

These stoppers are made of a superior grade of rubber that has softness, resiliency, and durability.

This combination unit indicates the inside and outside temperatures and the indoor humidity.

This demo features a cathode beam to explain the electromagnetic nature of electrons.

These Meker type burners are for use where an extremely hot flame is required.

The assortment of labware contains some of the most commonly used pieces. The plastic set comes with 20 items packed in a plastic storage box.

This newly designed rheostat features a protective cover.

These activities are designed to meet exam requirements for the regents exam part D.

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Economy Color-Coded Spring Scales

This excellent quality electrostatic generator consists of a charge generation system, an aluminum collector sphere, and an electric motor drive on a sturdy base.