WGU-C165: Integrated Physical Science | 252 Questions With Complete Solutions.

Chemistry: - The study of atoms and molecules, their structures, and their interactions to form various substances. Physics: - The study of forces, energy and motion. Earth Science: - This field focuses on Earth's structure and composition, as well as the processes that change Earth, such as volcanic and seismic activity. Physical Science: - The scientific study of nonliving matter. Ex: chemistry, physics, and Earth science. Astronomy: - The study of the moon, stars, and other objects in space. Controlled Experiment: - An experiment in which only one variable is manipulated at a time.. Independent Variable: - The variable that is manipulated in an experiment. Dependent Variable: - The outcome factor; the variable that may change in response to manipulations of the independent variable. Control Variable: - A variable that is kept constant during a controlled experiment. Observational Study: - The systems are observed as they appear in nature and researchers do not attempt to change them. Laboratory Experiment: - Researchers study the system of interest in a highly controlled artificial setting (lab).Physical Model: - A physical representation of an object. Ex: Scaled down version of the solar system. Conceptual Model: - A verbal or graphical explanation for how a system works or is organized. Ex: posters, charts.