Publisher's Synopsis
Part of a series of books which introduce the reader to science and technology through active involvement in project work and experimentation. Each title has 20 projects to help the reader to understand the theme concerned, with this book examining a variety of biological principles.;The series emphasizes safety and experimental techniques such as organization and planning, record keeping and cleanliness. Instructions are given in detail with illustrations used to help qualify points of possible confusion. Projects where adult supervision is considered necessary are marked by a symbol. Each title includes safety rules.
