US$ 124.95
this demo motor on a molded ABS base operates at 6-8V to demonstrate visible-spectrum color mixing
or specimens during reading and inspection
Five-cylinder equal-mass set with hooks in copper
this wool cloth is a standard accessory for electroscope and Van de Graaff work
Red Litmus Test Strips with Container, 100-Pack Entomology & Zoology_Dissection this demo motor on aPack of 100 red litmus test strips ships in a reusable container as a classroom indicator for detecting basic and alkaline solutions.
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