SCIENCE FAIR PROJECT TEMPLATE  Each of the following slides are designed to present a step in your science investigation using the Scientific Method.  Write all your project information in the corresponding slides.  Slide 9 between Data and Results contains an Excel connection to create a bar graph.  You can use all, some, or replace the clip art.  Delete this slide after you complete your presentation.

PROBLEM STATEMENT Which brand of paper towel is the strongest?

VARIABLES Constant Variables: Pennies Water Graduated cylinder tray Manipulated Variable: Bounty regular Bounty Basic Bounty DuraTowel Tuf paper towel Brawny Decorator Towel Publix paper towel Responding Variable: Which brand of paper towel is the strongest?

HYPOTHESIS If we test different brands of paper towels, then Bounty DuraTowel will be the strongest.

MATERIALS Bounty regularpennies Bounty Basicwater Bounty DuraTowelgraduated cylinder Tuf paper toweltray Brawny Decorator Towel Publix paper towel

PROCEDURES 1.Dunk the paper towel in 20ml of water. 2.Take it out of the water and gently squeeze the extra water. 3.Two people hold the paper towel by the corners while another person carefully places the pennies on the paper towel one at a time. 4.Continue placing pennies until the paper towel breaks. Do not count the penny that rips the paper towel. 5.Repeat steps 1-4 with the same brand of paper towel two times. 6.Repeat steps 1-5 with all of the brands.

DATA Number of Pennies Trial 1Trial 2Trial 3Average DuraTowel Bounty Basic Bounty Brawny* Publix Tuf Decorator

DATA

RESULTS DuraTowel had the highest average, 376 pennies. The rest in order of greatest to least are Bounty, 285; Brawny, 212; Bounty Basic, 185; Publix, 147; Decorator, 145; Tuf, 82. Tuf came in last place.

CONCLUSION Our hypothesis was supported by our experiment. This was probably because DuraTowel was thicker than the other brands. The thicker brands held more pennies than the thinner ones.

APPLICATION  The next time we go to the supermarket we will buy DuraTowel. We noticed that Brawny was much smaller than the other towels. We wonder what would happen if all the brands were the same size.

BIBLIOGRAPHY Livesay, Vicky Miller. "This One or That One?" Hopscotch Oct.-Nov. 2009: Print. "Bounty Paper Towels and Napkins." Bounty Paper Towels and Napkins. Web. 24 Oct Langley, Andrew. Paper Products. New York: Crabtree Publishing Company, 2009.

ABSTRACT We wanted to know which brand of paper towel is the strongest. We dampened each brand of paper towel, then placed as many pennies as we could until it was torn. DuraTowel was the strongest.