After the first experimental day our grass was 8.25 cm and the control group was at 7 cm. This shows how the rock salt helped increase the grass growth rate at first. However, on the second day our grass was at 7 cm and the control group was …show more content…
This could have been the reason the grass height declined more on certain days and less on others. To fix this issue we could have measured a specific amount of rock salt to give on each lab day to insure results are more accurate. Another issue could have been that the beaker with rock salt may not have diluted the water the same amount each day. This would cause different results and not give us an accurate understanding of our grass cubes growth rate. To fix this we should have let the rock salt dissolve in the water for a specific amount of time each day to make sure it diluted it the same as it day every day. In the future I would like to understand why the rock salt had no negative effect on the grass height on the first day. Also I would like to more in depth on how the rock salt affected it the way it did instead of just