An introduction to shaping such materials as wood, stone, metal, and plastic, describing their properties and how they are transformed into useful objects; and includes experiments that demonstrate ho
An introduction to shaping such materials as wood, stone, metal, and plastic, describing their properties and how they are transformed into useful objects; and includes experiments that demonstrate ho
Presents an introduction to mixing and separating, describing how materials can change into something else by separating the pieces of one material or mixing two materials together; and includes simpl
Examines how optical engineers combine the study of light and vision with the engineering design process to create world-changing instruments and technologies, including how these engineers define pro
The world's greatest inventors share the secrets of their inventions. Follow the inventing process step by step. Read about the races to invent the lightbulb, telephone, and airplane. Find out who inv
Describes how liquids, solids, and gases can change by such processes as heating, melting, and stirring, and includes simple experiments to demonstrate chemical reactions.
