Riley, Peter D

Teaches children about different types of gases, with information on how gases are used on a daily basis, how they move, how they impact the life cycle, how gases are used in the water cycle, and other related topics.

Explores the properties of matter in its solid and liquid states, covering such topics as volume, powders, liquid thickness, melting, freezing, and separating soluble solids.

Introduces the concept that all living things go through stages that together are known as a life cycle.

Describes different kinds of materials and uses simple experiments to explain how their shape or state of being can be changed.

Presents a series of experiments and activities that young astronomers can use to explore the Moon and planets, gravity, galaxies, and more.

Describes different kinds of materials, their composition and uses, how they are produced, and ways in which to recycle such things as paper, fibers, and metal.

An introduction to some of the characteristics of the four seasons.

An introduction to various types of materials and their different properties. Experiments included to show how it works.

Explains the main scientific principles of forces and presents experiments to show how it works.