Carbon Cycle in Soil Kit for Global Warming and Feedback Loops Chemical_Mineral Oil Two pith balls suspended on

Two pith balls suspended on unspun silk from a brass pillar

Plastic sheath and rubber hanging cap on this 12-inch yellow-backed spirit thermometer reading -10 to 110°C

Single-axis focusing geometry of this cylindrical lens lets students see how a curved surface forms line images

showing how current through an iron core builds magnetic flux in student investigations

Replacement GL 45 autoclavable screw cap fits compatible reagent bottles for sterilization

Carbon Cycle in Soil Kit for Global Warming and Feedback Loops Chemical_Mineral Oil Two pith balls suspended onCarbon cycle soil kit explores global warming through soil respiration measurement, ecosystem analysis, and climate chemistry investigation.