1. Scientific Process Organized Common Sense

2. Who uses the Scientific Process? Scientists Anyone trying to solve a problem

3. Steps of Scientific Process 1.Observe and state a problem 2.Form a hypothesis An educated guess 3.Test the hypothesis

4. Steps of Scientific Process 4.Record and analyze the data 5.Form a conclusion 6.Replicate the work Do it over and over and over …

5. Experimental Design Whenever possible, a hypothesis should be tested by an experiment in which one variable is changed at a time. Controlled experiment

6. Experimental Design Manipulated (independent) Variable –The variable that is deliberately changed Responding (dependant) variable –Factor in an experiment that the scientist wants to observe

7. Types of Data Quantitative – involves numbers or measurements –25 cm –110 grams –38 degrees Celsius Qualitative – involves subjective observations –Moved in a zig-zag pattern –The pinecone has large spines

8. Experimental Design Control –Variable that the scientist keeps the same –What results are compared against. –How do you know there has been a change?

9. Summary