Introduces electricity and circuits, as well as some of the electrical devices that are found in the home, such as refrigerators, CD players, and hair dryers. Includes related activities.

This book presents an introduction to different kinds of sounds and how they are made.

"Red Kangaroo ate too much junk food and now she has a stomachache! Can she go back in time to fix her mistake? Dr. Chris says, "Yes!" All Red Kangaroo needs to understand are the basics of general relativity. Once she masters them, she has the knowledge she needs to make herself feel better! In this new series, Chris Ferrie answers all the questions Red Kangaroo has for him about what things are made of and how things work using real-world and practical...