Hardwood Insect Pinning Block with 5-Hole Step Heights Color coded periodic table Periodic table Chemical elements Periodic table poster durable enough for repeated classroom

durable enough for repeated classroom handling

Graphite lattice kit whose atoms and connecting rods assemble into planar carbon sheets

4 inch dimensions in aluminum

the ferrous reference specimen in the metal density series

this galvanic skin response data-logging sensor tracks changes in skin conductivity tied to emotional and physiological states

Hardwood Insect Pinning Block with 5-Hole Step Heights Color coded periodic table Periodic table Chemical elements Periodic table poster durable enough for repeated classroomStepped five hole pinning block sets each insect pin at a consistent height, standardizing specimen mounting position across an entomology collection.