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The Scientific Method: A Complete Guide for Conducting Experiments

Learn how to effectively use the scientific method to conduct experiments and answer testable questions. This guide walks you through the process step by step—starting from asking a question and forming a hypothesis, to designing an experiment and analyzing the data. Discover how to test your ideas with real-world examples, such as the effects of different substances on potato growth. By the end, you will be able to create an attractive final report that communicates your findings clearly. Perfect for students and science enthusiasts alike!

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The Scientific Method: A Complete Guide for Conducting Experiments

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  1. Using the Scientific Method Guide to Experiments!

  2. Ask a question!! • Make sure that your questions is “testable” • Ex: What will happen if I put an organic potato and a potato treated with “budnip” into a glass of water? • Ex: Will mixing vinegar and baking soda give the same result as mixing vinegar and baking powder? Step 1

  3. EX: Chlorpropham(commercial names: Bud Nip, Taterpex) is a plant growth regulator. It is used to slow or stop budding and sprouting in many food plants including potatoes. • http://en.wikipedia.org/wiki/Chlorpropham • http://pmep.cce.cornell.edu/profiles/extoxnet/carbaryl-dicrotophos/chlorpropham-ext.html • http://www.trademarkia.com/bud-nip-73383747.html 2A - Research

  4. Make a hypothesis • A possible answer to your question • If… Then… because… format • Ex: If I put an organic potato and a potato treated with “budnip” into a glass of water, then the organic potato will sprout buds and roots while the other potato will not because it has been treated to prevent this from happening. Step 2

  5. Test your hypothesis! - Design an experiment • List materials needed • Ex: • Two glasses of water • Sunny windowsill • Organic potato • Potato treated with “budnip”. • Knife • Toothpicks Step 3 A

  6. List procedure • Step by step • Someone else must be able to copy it the same way and get the same result. • Ex: • 1 Fill two glasses 3/4 with water. • Cut both potatoes in half. • Place Toothpicks in potatoes so that they can rest on top of glass with part of the potato submerged. • Place each in sunny windowsill. • Observe daily and record any changes in data table. STEP 3B

  7. Record and Analyze Data • Write down your observations • Organize into charts and graphs Step 4

  8. DATA TABLE

  9. Come to a conclusion • Look at your data • Was your hypothesis correct • Explain why or why not Step 5

  10. Communicate • Make a backboard • Contains all steps • Contains pictures • Is attractive • Make a final report • Type all information and conclusion Step 6

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