Analyzing Data Section 1: Units and Measurements Section 2: Scientific Notation and Dimensional Analysis Section 3: Uncertainty in Data Section 4: Representing Data

Chemists collect and analyze data to determine how matter interacts. K What I Know W What I Want to Find Out L What I Learned Copyright © McGraw-Hill Education

Section 1: Chemists use an internationally recognized system of units to communicate their findings. Section 2: Scientists use scientific methods to systematically pose and test solutions to questions and assess the results of the tests. Section 3: Measurements contain uncertainties that affect how a calculated result is presented. Section 4: Graphs visually depict data, making it easier to see patterns and trends.

Essential Questions What are the SI base units for time, length, mass, and temperature? How does adding a prefix change a unit? How are the derived units different for volume and density? Why use scientific notation to express numbers? How is dimensional analysis used for unit conversion? How do accuracy and precision compare? How can the accuracy of data be described using error and percent error? Copyright © McGraw-Hill Education Analyzing Data

Essential Questions continued What are the rules for significant figures and how can they be used to express uncertainty in measured and calculated values? Why are graphs created? How can graphs be interpreted? Copyright © McGraw-Hill Education Analyzing Data

Vocabulary Review New continued New mass liter quantitative data experiment independent variable New continued liter density scientific notation dimensional analysis conversion factor accuracy precision error percent error significant figure graph New base unit second meter kilogram kelvin derived unit Analyzing Data Copyright © McGraw-Hill Education