Core Concepts

Text and photographs look at evolution, focusing on natural selection, genetics and evolution, population genetics and other topics.

Text and photographs look at the biology, focusing on biological diversity, the essence of life, life at the molecular level, other topics.

Text and photographs look at ecology, focusing on climate, ecosystems, conservation, and other topics.

Text and photographs look at animal systems, focusing on eating, locomotion, animal defense mechanisms and other topics.

Text and photographs look at the cell biology, focusing on cell locomotion and support, a look inside the cell, how cells communicate and other topics.

"Mechanics is the branch of physics that deals with forces and movement. Aligned to the science curriculum, this stimulating volume explores topics such as measurement, mass, acceleration, energy, levers, inclines, and pulleys and gears. Nine projects help readers grasp a key scientific principle, such as cheating the force of gravity, inertia, and centripetal force. The text includes a chapter on Nicolas Copernicus, who developed the heliocentric model of the universe. Colorful diagrams explain certain concepts and the workings of machines" -- Provided by publisher.

"Page after page, this title proves that the power of attraction is undeniable. Readers move beyond a simple fascination with the power of magnets to a clear understanding of the science behind magnetics. Natural magnets, Earth's magnetic field, and the ties between electricity and magnetics are all featured, in addition to the creation and use of magnets in commercial and everyday applications. Information about the life and work of physicist Joseph Henry, a leading electromagnetics pioneer, and a timeline of important dates in the field are also included" -- Provided by publisher.

"We often automatically equate heat with temperature to such a degree that we may not take the time to consider what heat really is. Heat refers to the energy that is transferred from one body to another that is at a lower temperature. This transfer occurs often without us knowing it, but it is ever-present and crucial to all life. This volume examines the basics of heat and the related concept of temperature. Detailed diagrams help illustrate such concepts as specific heat capacity and latent heat. Clear text explains the difference between conduction, convection, and radiation, as well as emitters, absorbers, and more" -- Provided by publisher.

"A compelling introduction to electric current, this volume investigates the conducting properties of various materials and goes on to describe ways of producing electric currents. It also describes how electricity is used in the home, in industry, and in the world of communications. Aligned to the Common Core science standards, the text explains moving charge, current and stored charge, resistance and power, direct and alternating currents, and electricity from machines, among other subjects. Nine activities help students understand practical applications. A chapter about Thomas Alva Edison honors his electric lightbulb invention and the beginning of the electric age" -- Provided by publisher.