Section 1 Scientific Method Chapter 2 Scientific method - logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses, and formulating theories that are supported by data.

Observing and Collecting Data Section 1 Scientific Method Chapter 2 Observing and Collecting Data Observing - use of the senses to obtain information. data may be qualitative (descriptive) quantitative (numerical) System - specific portion of matter in a given region of space that has been selected for study during an experiment or observation.

Qualitative and Quantitative Data Visual Concepts Chapter 2 Qualitative and Quantitative Data Click below to watch the Visual Concept. Visual Concept

Formulating Hypotheses Section 1 Scientific Method Chapter 2 Formulating Hypotheses Hypothesis - generalizations about the data observed, must be testable.

Formulating Hypotheses Section 1 Scientific Method Chapter 2 Formulating Hypotheses

Chapter 2 Testing Hypotheses Section 1 Scientific Method Chapter 2 Testing Hypotheses An experiment must be conducted to test the hypothesis. Controls - experimental conditions that remain constant. Variables - experimental conditions that change. Independent variable – manipulated by scientist Dependent variable – changes in response to independent variable

Section 1 Scientific Method Chapter 2 Theorizing Model - more than just a physical object; it is often an explanation of how phenomena occur and how data or events are related. visual, verbal, or mathematical example: atomic model of matter Theory - broad generalization that explains a body of facts or phenomena.

Chapter 2 Models Visual Concepts Click below to watch the Visual Concept. Visual Concept

Section 1 Scientific Method Chapter 2 Scientific Method