Raw Fossiliferous Limestone Sedimentary Rock Hand Sample, Approx 3 inch Lab Supplies_Scoops & Spatulas this 6-inch Alnico bar pair

this 6-inch Alnico bar pair extends field lines visibly along the magnet body for full-class iron-filing demonstrations

the principle behind thermostats and coils

Electric art electrolysis kit creates patterns through electrochemical reactions for 5 demonstrations of redox principles and surface chemistry

Thirty-two-piece starter kit combining glassware and plasticware for basic measurement

and electrolyte-conductivity investigations

Raw Fossiliferous Limestone Sedimentary Rock Hand Sample, Approx 3 inch Lab Supplies_Scoops & Spatulas this 6-inch Alnico bar pairFossiliferous limestone hand sample measures approximately 3 inches with visible shell and coral fragments for combined paleontology and sedimentary geology teaching.