Daily Science Aug 21 Label the following

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Presentation transcript:

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: ___________