The Scientific Method

Statement of Problem This is the question your experiment will answer. Example: Which paper towel is stronger, Bounty or Kroger?

Hypothesis This is a sentence that tells what you predict the results will be. It is OK if your hypothesis is wrong! Example: Bounty will be a stronger paper towel than Kroger brand.

Procedure This is the step-by-step directions of how you conducted your test. Example: First we gathered two types of paper towel, Bounty and Kroger brand. 2. We placed each piece of paper towel over a cup and secured it with a rubber band.

Data This is a graph, table or chart that shows what happened in your experiment. Examples:

Conclusion This is the paragraph in which you explain what happened in the experiment. 1st sentence-Tell if your hypothesis was right or wrong. 2nd-5th sentence-Explain your data with words. Last sentence-Tell what you proved

Variable This is the ONE thing that you will change from one test to the next. Every other part of your procedure must stay exactly the same. Example: The variable in my experiment is the brand of paper towel.

Conclusion Example My hypothesis was correct: Bounty was a stronger paper towel than the Kroger brand. Bounty held 50 ml of water. Kroger brand only held 37 ml of water. We proved that Bounty is a stronger paper towel than the Kroger brand.