Method

                                                         Paper towel Absorbency  Test

aim: To determine which brand of paper towel is the most absorbent.
dependent variable: amount of water that is being absorbed.
independent variable: the brand of paper towel.
controlled variable: the amount of water in the tray.

1. Gather the equipment needed.
2. Taking the tray (baking tray) place it on a flat surface.
3. Fill up the metal tray with 400mL of water.
4. Make sure the stopwatch is ready.
5. Place the chosen brand of paper towel in the tray of water.
6. Once the paper towel touches the water start the stopwatch.
7. wait until the stopwatch reaches 15 seconds.
8. Once 15 seconds is up take the paper towel out of the tray.
9.  hold the paper towel over the tray letting the excess water drip for another 15 seconds.
10. By this time the stopwatch will be at 30 seconds and you now ring out the paper towel over a bowl.
11. Pour the contents (water) of the bowl in a measuring cylinder.
12. Record the results.
13. Repeat steps 3 - 12 another 4 times with the same brand for reliability.
14. Repeat all the steps with a different brand of paper towel.