Hansen, Amy

Discusses solid and liquid matter using pictures and simple text.

Simple text and illustrations explore what matter is and the different forms it can have.

Explains how melting can change the form of solids, what causes melting and other ways that matter can change form.

Looks at water-supply for children, focusing on the three forms of water, change in water, and why water molecules change.

An introduction to wind energy that explains how it is possible to use wind as an energy source and discusses the future applications of wind power.

Simple text and color photographs introduce different items, and the materials that they are made from.

An introduction to wind energy that explains how it is possible to use wind as an energy source and discusses the future applications of wind power.

An introduction to solar power that explains what it is, how it works, why it is a good alternate source of energy, what the pros and cons of solar power are, and how it might be used in the future.

An introduction to nuclear energy that defines what it is, describes how it is made, and discusses how it is used and its negative effects on the planet.

An introduction to hydropower that defines what it is, describes how it is made, and discusses how it is used and its negative effects on the planet.