This group gets no fertilization. Set up two other test groups. One receives a certain amount of fertilizer each week. The other gets twice as much. Materials Students should read over the procedure carefully, gather their materials, and begin the experiment.
Results Use a separate notebook for recording all measurements and observations.
A data table is a good way to show your experiment results in an organized way. Make sure your measurements are accurate. It is better to have too much data than not enough so take lots of notes. When making an observation, write down the date and time. Consider taking photographs to be used as part of your display.