This book contains 73 science experiments divided into six sections. Each experiment includes an investigation sheet on which students are asked to record their observation and conclusions. About Author: Sarah Martin obtained a degree in biology from the University of California at Davis. Soon after graduation, she joined the Peace Corps where she served two years as a wildlife biologist in West Africa. After returning to the United States, she worked for a K-8 science publisher for four years before going out on her own.