Daily Science Aug 21 Label the following What is the difference between accuracy and precision? What is this measurement?
Graphs Pg.9
Types of Graphs Bar Graph- shows how a quantity varies Pie Graph- used to represent parts of a whole Line graph- used to show the relationship between two variables
Line graphs Most used in chemisty Best fit line- straight line that touches as many points as possible
Labeling To Determine Scale Determine range of data Must have 3 things labeled on a graph Title- needs to be descriptive x-axis and y-axis Needs to include unit To Determine Scale Determine range of data Count lines on graph Divide range by # of lines
Slope The slope on a line graph can tell you a lot of information Slope= rise/run m=Δy/Δx m=y2-y1/x2-x1
Pie Graph How do we determine how big to make each section? Degrees in a circle: ____________ Percent: ______________ Conversion: ___________