Incoming Resources
- Transfer of energy, by Simon de Pinna
- Force & motion, by Clint Twist
- Energy, author, Emily Dodd ; consultant, Jack Challoner
- Forces and motion, by Robert Snedden
- Pulling, Patricia Whitehouse
- Work, by Sally M. Walker and Roseann Feldmann ; photographs by Andy King
- Scooby-Doo!, the high-voltage ghost : a science of energy mystery, by Megan Cooley Peterson ; illustrated by Dario Brizuela
- Zombies and forces and motion, by Mark Weakland ; illustrated by Gervasio
- Experiments with force and motion, by Colin Uttley
- Forces and motion, Steve Parker
- Gravity, by Robin Nelson
- Make it go, David Evans & Claudette Williams
- How do we know the nature of energy, by Robert Greenberger
- Experiments with energy, by Salvatore Tocci
- Super cool forces and motion activities with Max Axiom, by Agnieszka Biskup
- Push and pull, by Robin Nelson
- The facts about forces and motion, by Rebecca Hunter
- Push and pull, Cody Crane ; content consultant, Elizabeth Case DeSantis, M.A., Elementary Education, Julia A. Stark Elementary School, Stamford Connecticut ; reading consultant, Jeanne M. Clidas, Ph. D., Reading Specialist
- Pushes and pulls, Anna Claybourne
- Push and pull, by Hollie J. Endres
- Kinetic and potential energy, understanding changes within physical systems, Jennifer Viegas
- Energies, an illustrated guide to the biosphere and civilization, Vaclav Smil