An introduction to electricity for children, identifying various appliances that run on electricity and what they do, discussing the sources of electricity, and including activities.
"When a bell rings or a buzzer goes off, it often serves as a reminder to complete a certain task or directs our attention to something that needs to be done. Readers learn about the various functions of bells and buzzers and how they operate throughout this . . . text, which explores . . . science curriculum topics"--Provided by publisher.