Eisco Quartz - Rock Crystal Specimen (Mineral), Approx. 1" (3cm) Subcategory_Stopcocks letting students read low-cell voltages

letting students read low-cell voltages and high-tension supply outputs on the same meter

Replacement velcro electrode leads for the Neulog GSR Sensor

Thicker-walled silicon tubing at 6 by 2 mm

Thermally isolated 150mL aluminum reservoir inside a polystyrene-lined jacket

Cast-metal Newton's-Second-Law apparatus on a 10 by 2

Eisco Quartz - Rock Crystal Specimen (Mineral), Approx. 1" (3cm) Subcategory_Stopcocks letting students read low-cell voltagesQuartz sample approximately 1" (3cm) in size A classic mineral, quartz is useful during lessons on mineral hardness, luster, and fracture Perfect size for use in classroom identification labs and exercises, correlates well to Next Generation Science Standards Evidence Statements Euhedral crystal expression is perfect for collections Specimen comes in clear labeled and barcoded bag for ideal storage Quartz is one of the most abundant minerals on Earth.