Explains gravity, what the effects of gravity are, and how gravity makes us strong .
Explains sound, what our ears do, and what frequency sounds good.
Atoms by Cindy Devine Dalton includes an introductory overview of critical physical sciences content: atoms, electricity, force and motion, gravity, light and sound.
Explains force and how the lever, pulley, and wedge work.
Explains how fast light travels, if the light bulb is hot or cold, and what the color of light .
Explains electricity, why opposites attract, and what a conductor is.