Set of 25 Rocks & Minerals, Cardboard Box Racks & Stands_Pipette & Burette Stands 5V flash-lamp bulbs in student-built

5V flash-lamp bulbs in student-built circuits and small-scale optics demonstrations

Food-grade peroxide test strips in a 50-strip vial calibrated for the 3 to 10 percent concentration range

and amphibian skeletal structure for comparative vertebrate teaching

sized for the positive-rail side of color-coded bench wiring

Set of 25 Rocks & Minerals, Cardboard Box Racks & Stands_Pipette & Burette Stands 5V flash-lamp bulbs in student-builtSet of 25 Collection of different minerals and rocks collected from different places. Set of 25 Collection of different minerals and rocks collected from different places, supplied in cardboard box. Each specimen labelled with name.