"Freeze-Dried Specimens"

Two o strains of Escherichia coli; one exhibiting Ampicillin resistance, and one sensitive, but competent and ready to receive the plasmid that confers resistance.

Each vial is a dropper bottle with enough freeze-dried serum to make 5 mL of reconstituted serum

Eight High-Quality Fossils for Introductory Classes

This set features a handy, economical selection of density cubes.

The Specific Heat Specimens Set can be used to determine the specific heats of a variety of common metals.

This Premium introductory collection features 12 palm-sized specimens perfectly sized for identifying details.

Well-preserved individual teeth from what may be the largest known carnivorous dinosaur found to date in the fossil record. Exceptional quality and detail. Average size: 1 ^₁/₂" L x ¹/₂" W. Morocco.

Exceptional perch specimens plus trays and pins, magnifiers, specimen storage bags, and a dissection manual are included in one package.

Exceptional earthworm specimens plus dissection trays and pins, magnifiers, specimen storage bags, and a dissection manual are all included in one package.

There’s no more convenient way of learning essential properties of rocks and minerals than with these informative, decorative sets of cards exclusively from WARD’S.

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