Book excerpt: This book outlines 85 lively activities the teacher can use in guiding three-, four-, and five-year-olds in a fruitful exploration of science. The first part of the book presents a theoretical explanation of the process approach advocated by the author; the second, the activities themselves: Exploring Water, Mixing Colors, Caring for Classroom Pets, Setting Objects in Motion, Discovering Seeds, Using Our Bodies in Space, and Working with Wood, to name a few.