Titles by Bobby Mercer

Junk Drawer Biology will demonstrate that you don't need high-tech equipment to make learning fun—just what you can find in your recycling bin and around the house. Science educator Bobby Mercer provides readers with hands-on experiments to explain the building blocks of living matter for children of all ages. The projects can be modified to meet the skill levels of the children doing them, from elementary school kids to teenagers. Though each challenge includes suggested materials and one step-by-step, illustrated solution, children are encouraged to think further come up with more questions to answer. Educators and parents will find this title a handy resource to teach children while having a lot of fun.

A project book for young readers with a need for speed, this work provides instruction on 25 easy-to-construct racecars that can be driven both indoors and out. They will learn how to use mousetraps, rubber bands, chemical reactions, gravity, and air pressure to power the cars that are made for little or no cost using recycled and repurposed materials. Readers will discover how to turn a potato chip can, a rubber band, and weights into a Chip-Can Dancer; retrofit a car with a toy plane propeller to make an air-powered Prop Car; and use an effervescent tablet in a small canister to make an impressive rocket engine for a Mini Pop Car. Each project is accompanied by a materials list, detailed step-by-step instructions with photos, and explanations of the science behind each racecar, including concepts such as friction, Newton’s laws of motion, and kinetic and potential energy.

How to use reuse and recycle components and supplies to build a variety of devices

The 20 easy-to-build robots in this project book can be constructed for little or no cost using common household objects and repurposed materials. From learning how to turn a toothbrush, an old cell phone or pager, and scrap wire into a Brush Bot, or how to hack a toy car to hotwire a Not-So-Remote Bot, each hands-on project contains a materials list and detailed step-by-step instructions with photos. Explanations of the science and technology behind each robot—including concepts such as friction, weight and mass, center of gravity, kinetic and potential energy, electric circuitry, DC vs. AC current, and more—are also included.