Did you know there are 6 simple machines that make up every complicated gizmo out there? This book introduces the pulley, the lever, the screw, the wedge, the inclined plane and the wheel & axle.

Electrons and currents, this is electrifying science learning! From Tesla to Frankenstein here's a fun spin on electricity and magnetism coiled into one readable book of facts and ideas to try.

Boost reading skills while learning about earth sciences in this engaging fifth grade workbook!