Thames & Kosmos 645014 Review: Thames & Kosmos CHEM C3000. Very good kit. However,it does not contain all the materials needed and the required additional solutions are almost impossible to get hold of these days (like sodium hydroxide - lye, because it is used by crack labs). Since these solutions are needed for many experiments and are illegal to mail, a large part of the experiments are not possible to do. This is a significant drawback. The experiments need close adult supervision and involve open flames, boiling solutions, hydrochloric acid, etc. and are not for younger children ... Read more »
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