Description In Toilets, early fluent readers learn about the science, engineering, and technology behind toilets and wastewater plumbing. Vibrant, full-color photos and carefully leveled text engage young readers as they learn about this important technology.. . A diagram illustrates parts of a toilet, and an activity offers kids an opportunity to extend discovery. Children can learn more about toilets using our safe search engine that provides relevant, age-appropriate websites. Toilets also features reading tips for teachers and parents, a table of contents, a glossary, and an index.. . Toilets is part of Jump!'s How Does It Work? series.