"The Mystery of Lyle and Louise"

Easy-to-use hand vacuum pump without gauge.

Made for cleaning graduated cylinders, bottle necks, and more.

Typical green-gray, fissile, clay-rich.

White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.

Chlorite-mica with perfect slaty cleavage.

Gray to white, coarse crystalline, carbonate rock.

Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

Nearly pure, green crystalline forsterite.

Red-brown to gray, coarse-grained, containing feldspar and mica.

Silvery, paragranite and muscovite-rich with medium garnet crystals.

Red, earthy, in natural chunk form; common pigment ore.

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

Construct Numerous Key Biochemicals with One Kit.

Brown, earthy, massive; used for yellow pigment.

Demonstrate magnetic fields on your desk or overhead with this clear container of iron fillings. Using magnets, you can show students how the fillings move and cluster together.

This kit demystifies DNA's and RNA's connection to protein synthesis.