Very safe We intimately put the chemical materials in different bottles, and close the lid tightly after use it, which can make the chemicals not easy to deteriorate and use again.
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Parent-child time Do scientific experiments with your children, enjoy happy parent-child time, and explore the mysteries of science with your children.
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Scientific experimental specification Clearly showing detailed step-by-step instructions for 80+ experiments and scientific principles to help children understand science, which is more professional and clear.
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