This is a review guide for an Energy Unit Test: Energy, Work, Net Forces, Simple Machines, Mechanical Advantage. (7th-grade science essential standards). It is best used with the "Energy Review Powerpoint" to prepare for the "Energy Unit Test". The review guided covers the forms of energy and energy transformations: mechanical, kinetic, potential, heat/thermal, radiant/light, sound, electrical, nuclear and chemical. It also covers work, force, net forces, mechanical advantage, circuits, simple machines, and thermal energy transfer (convection, conduction, and radiation).