Baby Professor The Six Simple Machines A Book on How Simple Machines Make Work

Did you know that big, complex machines can be broken down into six simple machines? This book will introduce your second grader to the six simple machines that make work easy. The first chapter will differentiate between a simple and compound machine. The second chapter will discuss the first three simple machines while the last chapter will touch on the other three. | Baby Professor The Six Simple Machines A Book on How Simple Machines Make Work