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.