2-3.

Includes index.

Batteries -- Why we use batteries -- How batteries work -- Rechargable batteries -- Things that use batteries -- Light bulbs -- How light bulbs work -- Different types of light bulbs -- Things that use light bulbs.

"Batteries and bulbs are found in many household devices, such as radios, lamps, portable video games, and other everyday objects. How do they work? This age-appropriate and accessible main text helps readers to develop a deeper understanding of the science of batteries and bulbs. These STEM concepts are presented to readers in a way that encourages their interest in common science curriculum topics. Eye-catching, full-color photographs, informative fact boxes, and detailed diagrams work together to appeal to those who are inquisitive about how the objects work in the world around them"--Provided by publisher.