Gr 6-10-A book that will help students design their science projects by following up on some of the suggestions given at the end of some experiments. Readers are led gradually from simple concepts to those that are more difficult, as each chapter's experiments build on those from preceding chapters. Sometimes, students are asked to save the substances produced from one project to use in another. Most of the materials, hardware and chemical, can be obtained from the kitchen, grocery store, or drugstore. Safety instructions are given at the beginning of the book and in boldface type, when required, in the individual instructions. Black-and-white drawings show how to set up apparatus or perform some of the procedures. Libraries owning Vicki Cobb's excellent kitchen-chemistry books (Lippincott) and Robert Mebane and Thomas Rybolt's ``Adventures with Atoms and Molecules'' books (Enslow) will still want to purchase this title, as it goes beyond providing explanations to lead young people to extrapolate newly learned concepts into hypotheses for further experimentation.-Margaret M. Hagel, Norfolk Public Library System, VA
Whether he's describing how to build a volcano or make a fire extinguisher, Gardner manages to convey the fun of learning chemistry. In this entry in the Science Projects series, he's included experiments that make things disappear, produce colorful chemical reactions, form new substances, and more. He carefully spells out the materials needed, notes precautions, and describes probable results for each project, designating those experiments appropriate for science fair use with a star. Safety reminders are set down in the introduction, and the diagrams and directions are sufficiently detailed to enable students to replicate most projects easily. The appendix contains a list of suppliers for materials that may not be readily available in neighborhood stores, and a bibliography is appended.