Simple machines might be simple, but they sure are mighty! Discover the physics behind simple machines and how we use them to make our lives easier. Readers will learn about the practical (and fun!) applications of these incredible machines and how we can use them to do the work for us. Add some fun to young readers' academic routines with Aha Academy! With everything students need to know plus brilliant biographies, amazing cross-curricular links, and inspiring career connections, this fun, fact-packed series will keep readers entertained and informed.