When a toy car rolls or a boulder falls, it's force that makes them move. But what is force and how does it work? There are forces at work whenever you throw a ball, run up the stairs, or push your big brother off the couch. Want to learn more about the forces around you? Read and find out!
This clear and appealing science book for early elementary age kids, both at home and in the classroom, uses simple, fun language, easy-to-understand examples, and cartoon-like art to make basic physics concepts understandable and fun. This book also includes a kid-friendly experiment in friction.