ll learn how combines work to harvest crops, including different parts of the machine, how they've changed agriculture, and new technology being implemented. Beautiful, crisp, full-color photographs complement the text. Combines features infographics, sidebars, reading tips for teachers and parents, a table of contents, a glossary, and an index. Children can learn more about combines using our safe search engine that provides relevant, age-appropriate websites. Combines is part of Jump!'s How Does It Work?: Farm Tech series.