WGU C165 Module 1 - Intro to Physical Science Exam Solved Questions & Answers Graded A+

Physics - The study of forces, energy, motion Chemistry - The study of atoms and molecules, their structures, and their interactions to form substances Earth science - The study of the Earth's structure and composition, and processes that change Earth essential attributes of science - Studies the natural world Uses testable ideas Relies on data from observations/experiments Presented for evaluation by other scientists Leads to further questions/research variables - The changing quantities in an experiment independent variable - What you change in an experiment on purpose dependent variable - The variable that changes because of an independent variable control variable - The variable(s) you don't want to study, need to be either eliminated or kept constant observational study - When systems are observed as they appear in nature, researchers do not attempt to change themphysical model - A model of a physical phenomenon, such as a planetary system conceptual model - A model used to visualize things that cannot be seen, such as atoms mathematical model - A model that treats physical objects/phenomena using mathematical methods computer model - A detailed, complex model calculated by a computer