"undervisningsmaterialer." . . "Juvenile works"@en . . "Juvenile works" . . . . . . . "Presents an introduction to the elements--naturally occurring substances that cannot be broken down into simpler substances by any known means, featuring in-depth profiles of the thirty-two best-known elements, and examining the properties, uses, discovery, technology, geology, and biology of all known elements up to 118."@en . . . . . . . . . . . . . "Each volume carefully presents characteristics, behavior, occurrence, isolation, and uses of the most important elements and their compounds. Laboratory demonstrations are illustrated with step-by-step photographs."@en . "Elements"@en . "Elements" . . . . . "kemi." . . . .