Set of 20 Rocks Cardboard Box Biology_Dissection Largest-value decade capacitance box stepping

Largest-value decade capacitance box stepping 10uF to 100uF in 10uF increments at plus-or-minus 5% on 63V

Mounted nervous system overview traces brain

the complementary-polarity counterpart to NPN for push-pull and bias-network demonstrations

Step-down transformer matched to a 35-watt sodium lamp on a 220V AC mains supply

sized for whole-class compound-pulley setups

Set of 20 Rocks Cardboard Box Biology_Dissection Largest-value decade capacitance box steppingSet of 20 Collections. Each specimen labelled with name. Set of 20 Collections of Igneous, Sedimentary, Metamorphic rocks containing different rock specimens supplied in carboard box. Each specimen labelled with name.