matter

"An examination of the science behind the astronomical phenomena known as black holes, including relevant theories and history-making discoveries as well as topics of current and future research" "--Provided by publisher.

Examines the history of theories about the basic building block of the physical universe.

Explains what density is, using examples from a birthday party--such as a room filling with people, a floating balloon, and the bubbles in a cup of soda--to illustrate the concept.

Describes the scientific concepts of physical and chemical change through an examination of how bread is made.

Uses a glass of water to introduce children to various scientific concepts, exploring the molecules found in a glass of water, the science it took to fill the glass, the role water plays in life on Earth, and other related topics.

Explains the different parts of atoms such as protons, neutrons, and electrons and why they are called the building blocks of all matter on Earth.

In simple text, presents the three states of matter, solid, liquid, and gas, and describes their attributes.

Photographs and text introduce young readers to the scientific properties of liquids and solids. Includes suggested activities, a glossary, index, and list of related Web sites.

Introduces the composition of matter, its changing states, and the effects of changing between states.