1. Daily Science Aug 21 Label the following
What is the difference between accuracy and precision?
What is this measurement?

2. Graphs
Pg.9

3. 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

4. Line graphs Most used in chemisty
Best fit line- straight line that touches as many points as possible

5. 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

6. 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

7. Pie Graph How do we determine how big to make each section?
Degrees in a circle: ____________
Percent: ______________
Conversion: ___________