Discusses different kinds of leaves, the forms and colors they may have, and their functions.

Explains how vital rain is, its chemical composition, the water cycle, how animals waterproof themselves, and ways of measuring and making rain.

Explores such aspects of rocks as their location, how they are formed, what they are made of, their appearance, how they can be dated, and their changing nature.

Explains how various colors are produced by reflected light and briefly discusses the occurences of colors in nature.

Explains how, why, and where bubbles are formed and describes their different uses and various appearances.

Examines the energy and light produced by the sun and their importance to life on Earth.