Books
Batteries, Bulbs, and Wires (Young Discoverers: Science Facts and Experiments)

A great discussion of magnets and electricity complete with hands-on activities to share and to experiment with the topics covered. Terrific diagrams to help with the details.
Battery Science: Make Widgets That Work and Gadgets That Go

A hands-on, do it until you understand it handbook for learning the science concepts underlying batteries and circuits. This book comes complete with the batteries, wires, light bulbs, and other equipment needed to do the activities.
Science Wiz: Electricity

This is more than a book; it's a kit. It has all the materials you need to experiment with the science of electricity except for a battery and a few household items which you can provide. Very helpful and fun to do.
What Are Atoms? (Rookie Read-About Science)

This book about atoms is intended for early readers and fits the science to the age group very well. It explains the basics of elementary chemistry on a simple level with diagrams and photographs to complement the science.
DK Eyewitness Books: Electricity

This is one of those books that are really ageless. Kids and adults will want to read, browse, linger and enjoy all of the pages of this book. DK books have always been a favorite in science instruction. Beautiful photographs and illustrations make this a museum in a book. It covers everything from the history of electricity to the science behind it. Every class library needs one of these.
The Magic School Bus And The Electric Field Trip

This book takes Mrs. Frizzle and her class on a journey to learn how electricity is created, how power plants work, and about voltage. Read and journey along with them to learn about electric currents with this favorite science teacher series.
Thomas Edison for Kids: His Life and Ideas, 21 Activities (For Kids series)

Thomas Edison was known for his many inventions. Electricity was critical in his creations. Learn more about this amazing scientist and inventor. Experiment with some of his science too.