"Ward's+Phenomena"

Measures velocity and acceleration with durability and accuracy.

Depicts structures and important hormones.

Spare pith balls for pith ball electroscope.

This self-contained apparatus explores wave velocity.

This economical model tests for eight different factors.

Typical Economic Crops.

Set of 10 models showing all the stages of karyokinesis and cytokinesis form metabolic cell of the formation.

Pack of 100 2" length nickel-plated dissection T-pins with 9/16" heads.

Liver with gall bladder at half natural size.

A pair of tubes for elecrolysis experiments.

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Designed for educational purposes and science classroom demonstrations of refraction principles and light physics.

Designed for educational purposes and science classroom demonstrations in optics, light refraction, spectrometry, and wavelengths.

Dynamometer, often referred to as spring scales, are a very accurate means to measure in grams or Newtons.

A variety of lenses and prism block shapes, packed in a wood storage case.

For density determinations, set of twelve in assorted sizes, shapes and masses.

Who knew that the trebuchet, one of the most elegant of all medieval weapons ever invented, could be improved!