WGU C165 Integrated Physical Sciences Study Guide Exam And Actual Answers.

Physics - Answer The study of forces, energy, motion Chemistry - Answer The study of atoms and molecules, their structures, and their interactions to form substances Earth science - Answer The study of the Earth's structure and composition, and processes that change Earth essential attributes of science - Answer 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 - Answer The changing quantities in an experiment independent variable - Answer What you change in an experiment on purpose dependent variable - Answer The variable that changes because of an independent variable control variable - Answer The variable(s) you don't want to study, need to be either eliminated or kept constant observational study - Answer When systems are observed as they appear in nature, researchers do not attempt to change them physical model - Answer A model of a physical phenomenon, such as a planetary system