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 detailed main text, which explores essential science curriculum topics. In addition, informative fact boxes, comprehensive diagrams, and eye-catching, full-color photographs encourage young learners to become interested in STEM concepts and develop a deeper appreciation for the science at work all around us.

Old-House Journal is the original magazine devoted to restoring and preserving old houses. For more than 35 years, our mission has been to help old-house owners repair, restore, update, and decorate buildings of every age and architectural style. Each issue explores hands-on restoration techniques, practical architectural guidelines, historical overviews, and homeowner stories--all in a trusted, authoritative voice.