"VWR"

Mature specimens of this widely studied annelid are provided.

Represents a Wide Range of Depositional Environments and Rock Textures

Amphibole group; black, coarse, massive.

Educational Materials, Accessories, Application: Physics, Support base steel for braided nylon pulley cord, tensile strength 15 lbs. test, height: 23 mm, base dimension: 5×7", thread size: ³/₈-16

Teach your students about the complete metamorphosis of an insect with these mealworms.

Foliated biotite, coarse, silvery gray with quartz-feldspar bands.

Formalin preserved. Available in pails.

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

An excellent set of materials for demonstrating electromagnetism and induced currents, the set includes two electromagnetic coils mounted on plastic saddle blocks, round and square iron cores, split round iron cores, a double core, and a card for showing lines of force. Set of two.

Freshwater. Filamentous. Unbranched trichome, thinly sheathed; oscillating movement. Basic culture solution.

Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars.

Brown, fluorescent crystals intergrown in dolomite rock.

Brown, earthy, massive; used for yellow pigment.

Formalin preserved sheep brains with dura mater removed. Available in jars or pails. Shipped in nontoxic Wardsafe®.

Appropriate for grades 6 to 12 Brings the First Law of Thermodynamics to life! This pair of precision-machined, chrome-plated steel balls is actually a hands-on demonstration in energy transformation. By striking the balls together, you will create enough heat at the point of contact to burn a hole in a sheet of paper.

Perfect for Introductory Lessons on Metamorphic Rocks.

Diverse collecion of organisms.