Week 4 of this independent study packet for third graders brings on new challenges in various subjects.

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.