Foods that provide you with Energy -  Discusses carbohydrates, fats, proteins, minerals, vitamins, and the food groups.

Work & Machines -  Discusses simple machines, compound machines, lifting, force, gasoline engines, diesel engines, internal combustion, gas turbine engines, electric motors, generators, and computers.

Energy Sources - Discusses the sun's energy in relation to plants and animals, solar energy, wind, water, steam, and fuels.

Matter - Discusses the 3 states of matter, changing the states of matter, facts & theories of matter, the motion of molecules, molecular attraction, using molecular attraction, heat energy, measuring heat energy, transferring heat energy, and heat to mechanical energy.
Also included is an extensive section on Chemical & Nuclear Energy: combining atoms, energy for chemical change, energy from chemical change, oxidation, energy in substances, chemical energy in living things, photosynthesis, nuclear energy, elements, energy in the nucleus, fission, mass-energy, fusion, and mass-energy transfers.

Light - Discusses what light is, light from the sun, the colors of light, how light travels, and light in different substances.

Sound - Discusses vibration, frequency, tension, sound wave, how fast sound is, controlling noise, hearing sound, and measuring the volume of sound.

Electricity - Discusses electrical energy and electrons; static electricity; electricity in the sky; steady currents of electricity; generators; electricity from fuels, nuclear fuels, chemical energy, light energy; solar batteries; measuring electrical energy, electric currents; how a switch works; switches for special jobs; feedback control; good and poor conductors; danger in a short circuit; and electromagnets and permanent magnets.