# Scientific Method Who uses it? What is it? Why should I care? 10-1-12.

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Scientific Method Who uses it? What is it? Why should I care? 10-1-12

Everyone uses it everyday.  Yes Even You!!!!!!!!!!

It is a way to solve problems. Do you have any? Any big or any small ones?

Any of these sound familiar? Where are my shoes? What should I have for lunch? What class do I have next? Did I do my homework for that class? Which deodorant works the longest?

6 Steps 1. Problem/Question 2. Observations and Info 3. Hypothesis 4. Experiment 5. Analyze Data 6. Conclusion

By following these steps in order you will learn about your question.

Problem/Question The question that you are trying to answer Be specific.

Hypothesis educated an educated guess a testable prediction

Experiment 2 parts: Materials and Procedure Materials: list of equipment needed Procedure : list of instructions

Analyze Data Collection of information and data from the experiment. It may be charts, graphs or written work.

Conclusion Did you find the answer to your question/problem? It is OK if your hypothesis was not correct.

Report your findings Very important to share info You will help others learn.

Variables A factor that can change or be changed in an experiment.

3 Types of Variables Independent (Manipulated) Variable: What is changed on purpose; only 1 in an experiment Ex: Moby changed how often he watered his plants.

Dependent (Responding) Variable: This is what changes by itself in your experiment. It is the DATA that you collect. Ex: How well Moby’s plants grew.

Controlled (Constant)Variable: Everything else in the experiment must be held constant (kept the same). Ex: Moby used same types of plants, same amount of light, same soil.

Model -A representation of an object or system - Often represents things that are very small or very large.

Examples Model Airplane Map Doll Clay volcano Stuffed Shark

Limitations of Models  What would be a limitation of a doll?  What would be a limitation of a model volcano?  Are there any limitations of my solar system model on the wall?

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