Unit 1: Chemical Building Blocks Chapter 1: Introduction to Physical Science Big Idea: Scientists investigate the natural world by posing questions, developing hypotheses, designing experiments, analyzing data, drawing conclusions, & communicating results

6 Sections What is Physical Science? Scientific Inquiry Measurement Math & Science Graphs in Science Science Lab Safety Mrs. Lee - Ch 1

Sec 1: What is Physical Science? KEY CONCEPTS Scientists use the skills of observing, inferring, & predicting to learn about the natural world Physical science is the study of matter & energy, & the changes that they undergo Mrs. Lee - Ch 1

Sec 1: Key Terms Science Observing Inferring Predicting Chemistry Physics Mrs. Lee - Ch 1

Sec 2: Scientific Inquiry KEY CONCEPTS Processes used in inquiry include posing questions, developing hypotheses, designing experiments, collecting & interpreting data, drawing conclusions, & communicating Scientists use models & develop laws & theories to increase people’s understanding of the natural world Mrs. Lee - Ch 1

Sec 2: Key Terms Scientific inquiry Hypothesis Parameter Manipulated variable Responding variable Controlled experiment Data Communicating Model Scientific theory Scientific law Mrs. Lee - Ch 1

Sec 3: Measurement KEY CONCEPTS Using SI allows scientists to compare data & communicate with each other about results SI units include: m, kg, m3, kg/m3, s, & K Mrs. Lee - Ch 1

Sec 3: Key Terms SI Weight Mass Volume Meniscus Density Celsius scale Kelvin scale Absolute zero Mrs. Lee - Ch 1

Sec 4: Math & Science KEY CONCEPTS When collecting data & making measurements, scientists use math skills involving estimation, accuracy & reproducibility, significant figures, & precision Mrs. Lee - Ch 1

Sec 4: Key Terms Estimate Accuracy Reproducibility Significant figures Precision Mrs. Lee - Ch 1

Sec 5: Graphs in Science KEY CONCEPTS Line graphs are used to display data to see how one variable (the responding variable) changes in response to another variable (the manipulated variable) A line of best fit emphasizes the overall trend shown by all the data taken as a whole Mrs. Lee - Ch 1

Sec 5: Graphs in Science (cont’d) KEY CONCEPTS (cont’d) Slope = Rise = y2 – y1 Run x2 – x1 Line graphs are powerful tools in science because they allow you to identify trends & make predictions Mrs. Lee - Ch 1

Sec 5: Key Terms Graph Horizontal axis Vertical axis Origin Coordinate Data point Line of best fit Linear graph Slope Nonlinear graph Mrs. Lee - Ch 1

Sec 6: Science Lab Safety KEY CONCEPTS Good preparation helps you stay safe when doing science activities in the lab or the field When any accident occurs, no matter how minor, notify your teacher immediately. Then listen to your teacher’s directions & carry them out quickly Mrs. Lee - Ch 1