Collection explores STEM topics and their application to society, economics, civics, history, and the natural world. Promote critical thinking and problem-solving by exploring multiple perspectives. Discover artistic innovation by combining the arts with more technical projects. Encourage hands-on learning as children investigate how things are built and work. 9 nonfiction chapter books in full color. All titles meet: Grade-Level NGSS State Grade-Level Social Studies Standards Grade-Level Informational Reading Standards