Provides an overview of the fundamental principles of energy and includes well-formed examples, information on how living creatures are affected by energy, and details about research on the topic.
Explains the structure and function of DNA, including how heredity works, how scientists read code, and the treatment of diseases caused by genetic errors, and discusses relevant scientific research.
Examines the changes in the atmosphere that produce various weather phenomena, and looks at how weather patterns over a period of time determine the climates of the Earth's various regions.
Discusses plate tectonics, the theory that the surface of the earth is always moving, and the connection of this phenomenon to earthquakes, volcanoes, and tsunamis.
Explains photosynthesis, the process responsible for providing the material and energy for all living things, and discusses such related issues as respiration, the carbon cycle, acid rain, and the greenhouse effect.
A detailed presentation of the structure and function of different types of cells and of research into developing technologies such as cloning and the use of stem cells.
