Rare and Precious Metals

Chromium isn't the most well-known metal, but it's very useful. In fact, chromium could even be called a supermetal. Chromium makes other metals better. From mining chromium to the making of chromium alloys, this book, a complement to any science curriculum, is a valuable look at this precious element. Vivid photographs, detailed captions, and "Metal Mania" fact boxes inform readers about the importance of chromium.

Eye-catching gold has been valuable to people throughout history. This thoughtful text addresses why that is. Gold's qualities as a metal is explored as well as the mining and refining process, all key concepts in the elementary science curriculum. Gold's many uses, including in medicine and space technology, is also examined. Glittery photographs and a graphic organizer accompany the text in this look at a fascinating metal.

Silver may seem to be everywhere, but it's actually only mined in very small amounts. The minerals from which silver can be extracted and its refining process are found in this look at one of Earth's most important metals. Silver alloys and their many uses are highlighted throughout the text, which includes a graphic organizer and numerous interesting fact boxes.