Writes on glass, film, plastic, metal, porcelain, wood, rubber, and paper. Produces precise lines of 0.3mm width. Permanent ink dries in split second. Water- and fade-proof. Consists of 6 black, 2 red, 2 blue, and 2 green pens.
Priciples of stoichiometry, This kit has been designed to allow students to perform experiments to see what types of reactions occur when various solutions are mixed together
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