"VWR"

Define and compare ways organisms have been preserved.

With this Complete Earthworm Dissection Lab, you’ll receive: 10 high quality specimens that are easy to pin and dissect, packed in formaldehyde-free Borealene II. 20 student manuals with pre-test, post-test and easy to follow step-by-step instructions. 10 disposable dissection trays that offer direct pinning to the surface with no cleanup or resurfacing. Teacher’s guide with student objectives, teaching hints and answers to student tests. Replacement Student Manuals and Teacher’s Guides may also be purchased separately.

Dark gray with abundant gas pocket vesicles.

Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.

Durable, lightweight, rubber apron resistant to chemicals, acids, and caustics.

Pale pink felsite, with small sanidine phenocrysts.

Examples of Different Forms of Breakage in Minerals

Coarse-grained, with microcline, biotite and horblende phenocrysts.

Ward’s® PURE Preserved Specimens - the best dissection experience from start to finish.

This organism is commonly isolated from soil, and depending upon the temperature of its environment, can produce a distinctive red pigment.

Cut black mica cleavage sheets.

Good grade, bronze-colored ore, massive.

This organism is a common inhabitant of intestinal flora, and can be a major cause of urinary tract infection.

White and black bands of quartz, feldspar, and biotite; typical foliation.

Red, medium, to coarse-grained iron oxide cement; shows hematite bands.

Gray andesite with phenocrysts of felspar and/or hornblende.