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Farinelli Rose: Simple Chemistry, Grades 4-6

Скачать книгу (размер 401 Kb , формат fb2, страниц 80) Аннотация: Simple Chemistry presents information and investigations on these six concepts: Objects can be described by the properties of the materials from whichthey are made. Substances can exist in different states — solid, liquid, or gas. Substances have characteristic properties. Mixtures can sometimes be separated into the original substances using characteristic properties. Elements are organized in…