"The Mystery of Lyle and Louise"

Students research a variety of macromolecules.

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

Dark, waxy, bitumin-rich.

CAS Number: 10361-37-2
Formula Weight: 208.27
Formula: BaCl₂
Hazard Info: Toxic
Density (g/mL): 3.9
Boiling Point (°C): 1560
Freezing Point (°C): 963
Solubility: Water
Synonyms: Barium Dichloride
Shelf Life (months): 36
Storage: Blue

Easily measure angles on negatives.

This combined safety device can be used to flush contaminants from eyes, face, or entire body.

Specially designed by Science Kit, this set enables teachers to create a lab experience which clearly demonstrates the cellular differentiation among the types of living organisms found in the five kingdoms.

Red, classic oolitic texture.

Fine crystalline, pure calcite.

CAS Number: 584-08-7
Formula: K2CO3
Density: 2.428 g/mL
Freezing Point: 891°C
Solubility: Water
Synonyms: Potash, Carbonic Acid Dipotassium Salt
Shelf Life: 12 Months

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

Nearly pure, green crystalline forsterite.

Gray to white, coarse crystalline, carbonate rock.

Dark gray with abundant gas pocket vesicles.

Gray and poorly sorted, with a gritty texture.

For first aid/rescues.