 
Your graphs should always be neat and professional looking.
Generally speaking, pie charts, and bar charts give the least information and
are not used that much in upper level science. They can be useful in short
presentations though. Mostly, we will be using XY Line graphs.

Title: All charts and graphs need a title that tells the reader
where did the data come from.

Axis Labels: What variable is being plotted on which axis, what is
being shown?

Units: Specifically, how is it being shown, are you measuring in cm
or meters, or km?

Numbers: Label tick marks on your axis evenly. Put as many numbers
on the axis as can be clearly read.

Size: Use as much of the paper as you can. A graph can't be too
big.

Straight edge: Whether you "connect the dots" or need to
estimate some "best fit" between the data points, use a straight
edge.

Graphing software: Don't be afraid to use XL or other
graphing
software. Show me the output and we can make it work.
Sloppy unkempt graphs will have serious point deductions. Plan ahead and get
help. This is the endproduct of your work in lab make it look good. : ) 