Potassium permanganate, containing manganese one of the transition elements, has many uses such as mouthwash and propelling rockets, making it is a very diverse compound. The lesson delves into such transition elements and...

Everything you wanted to know about calculus—and more! The resource is a complete Calculus textbook with explanations, examples, and practice problems. 

A science text for young children that looks at which materials are made by humans and which are found in the natural world. Includes lots of photographs, ideas for discussion, a glossary, and comprehension questions.