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Capital Area Science & Engineering Fair 2013

Capital Area Science & Engineering Fair 2013. Completing a science fair project. Have you ever wondered…?. What is the best preservation process for storing and keeping food fresh? The most effective way to clean or purify water? What popcorn brand pops the best?

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Capital Area Science & Engineering Fair 2013

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  1. Capital Area Science & Engineering Fair 2013 Completing a science fair project

  2. Have you ever wondered…? • What is the best preservation process for storing and keeping food fresh? • The most effective way to clean or purify water? • What popcorn brand pops the best? • Does the price of a golf ball determine its performance?

  3. Science Fair Project ! • Think about your hobbies and interests • Determine good ideas that can be tested “…a good science fair project must draw on your interests.”

  4. Absorbent Power of Paper Towels

  5. Step 1 • Identify my purpose and identify my control, constants, and variables Control: a standard group or individual used for checking the results of an experiment Constant: a factor that never changes (size, ply, amount of water) Independent Variable: the variable that is changed in a scientific experiment (this is the thing you are changing or testing) (3 types of towels) Dependent Variable: the variable being measured in a scientific experiment (changes as a result of your experiment you are conducting) (100 mL of water)

  6. Step 2 • Research your topic • History of paper towels • What are they made out of? • What is absorption? • How does absorption take place using paper towels?

  7. Step 3 • Form a hypothesis • An educated guess/question that is testable. Does the brand of paper towel effect the absorbency of water?

  8. Step 4 • Step-by-step Procedure • Pour 100 mL of water into the pan. • Place the Bounty paper towel in the middle of the pan and gently place the paper towel on top of the water. • Time for 20 seconds while recording what is happening to the wet paper towel. • After 20 seconds has passed, pick up the paper towel by the bottom right hand corner and move over the beaker. • Use fingers to gently squeeze the water out without ripping the paper towel. • Record how much water was absorbed in the paper towel by measuring the amount in the beaker.

  9. Step 5 & 6 • Experiment • Do the testing outlined in your procedure • Draw conclusions and organize the results • Use tables, charts, graphs, logs, picture-taking, etc.

  10. Your turn! Create an easy to read table, chart, or graph using Pages on your Ipad from the data that is found

  11. What else? You will get to create a tri-fold to show what your project was about and the results that you found!

  12. Sign up today!

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