Discusses the properties of the Earth's layers, explains how plate techtonics help to form the planets geographic features, and describes how earthquakes and volcanoes occur.
Discusses the properties of water, explains its importance to life on Earth and Earth's climate, and describes the places and forms in which water is found on Earth and in the solar system.
Key features: - Topics correlated to the middle school science curriculum- Text developed in consultation with a science curriculum consultant- Clear explanations of key scientific concepts- A wealth of diagrams and other detailed illustrations that aid understanding- A glossary of key scientific termsSpecial Features: - Diagrams- Focus boxes- Glossary and Index- Sources of further information
Explores the forms energy takes, including heat and the electromagnetic spectrum, discusses how energy is transferred between objects and forms, and describes the properties of the different types of energy.
Describes what electricity is and how it is generated, stored, and used; explains what magnets are and how magnetism works; and discusses how electricity can be used to create magnets.
Describes the different kinds of rocks and minerals found on Earth, explains how they can change over time, and discusses how fossils are formed and studied.
Introduces chemical reactions, covering how atoms, compounds, and mixtures form acids, bases, and salts and what happens when these come in contact with each other under certain conditions.
Explores the forms energy takes, including heat and the electromagnetic spectrum, discusses how energy is transferred between objects and forms, and describes the properties of the different types of energy.
Introduces chemical reactions, covering how atoms, compounds, and mixtures form acids, bases, and salts and what happens when these come in contact with each other under certain conditions.
Describes what electricity is and how it is generated, stored, and used; explains what magnets are and how magnetism works; and discusses how electricity can be used to create magnets.