Branley, Franklyn Mansfield

Explains how the water cycle leads to different types of weather patterns.

A simple explanation of how to tell direction from the position of the sun or with a compass when the needle is at N.

Describes the various properties of air and shows how to prove that air takes up space and that there is air dissolved in water.

Explains what comets are, how they are formed, and how their unusual orbits bring them into earth's view at predictable intervals, with a special focus on Halley's comet.

Describes how sunshine and the tilt of the earth's axis are responsible for the changing seasons.

Describes the sun and how it provides the light and energy which allow plant and animal life to exist on the earth.

Describes what may have happened when the earth began billions of years ago.

Imagines sights and experiences on a moon visit.

Discusses the size, distance from the earth, and physical characteristics of the moon and explains the reasons for the phases of the moon.

Explains basic facts about the Big Dipper, including which stars make up the constellation, how its position changes in the sky, and how it points to the North Star.