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Scientific Method Notes. Question/Problem The first step in the scientific method which tells the audience what you are trying to solve. The question.

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Presentation on theme: "Scientific Method Notes. Question/Problem The first step in the scientific method which tells the audience what you are trying to solve. The question."— Presentation transcript:

1 Scientific Method Notes

2 Question/Problem The first step in the scientific method which tells the audience what you are trying to solve. The question needs to be specific to your project, lab or experiment.

3 Purpose Allows audience to know the reason you are doing this project. Usually only one sentence that is straight to the point. The purpose needs to be stated –To determine…

4 Hypothesis The hypothesis is the educated guess as to what YOU THINK will happen during your experiment. Since this is a guess it does NOT need to be correct. Do NOT change your hypothesis to make it fit your results. Must be worded –If…then…

5 Procedure Explains to the audience how the experiment was completed. MUST BE SPECIFIC!!! A detailed materials list must be present before the procedure is stated. **Another person should be able to read your procedure and complete your project exactly the way you did. Think of a recipe for cooking.

6 Variable (Experimental Group) Independent variable- what is being tested in your experiment. This is what is being changed. There should only be one independent variable. (x-axis) Dependent variable- this is what you are measuring. (y-axis) HINT your dependent variable DEPENDS on your independent variable.

7 Constants/Controls Constants- all things kept the same in the experiment Control is what you compare your results too. This allows you to know how accurate the experiment is.

8 Results Written results in paragraph form. An explanation is given on the outcome of the experiment. Facts only, no opinions. Data table- displays your results in a chart (date table) form. Graphs- another visual for the results. Bar or line graph only.

9 Conclusion Must always include: –Prove or disprove hypothesis –Explain why that was possible (may offer opinions) –Future plans- how would you expand on this project in the future.

10 Sample Title: Musical plants Problem: Will classical music make the carrot plant grow the tallest? Purpose: To determine if the carrot plant will grow taller when exposed to classical music. Hypothesis: If I expose10 carrot plants to classical music for 20 minutes each day, then they will grow on average 15cm taller than the plants without music exposure.

11 Materials: 20 carrot plants (all 5 cm tall) A CD player A CD of Mozart music 2 artificial grow lights.

12 Procedure: 1. Place 10 carrot plants in one room set up with the grow lights and play music for 20 minutes a day for 30 days. 2.Measure and record the height of the plants every other day. Repeat steps one and two with the plants not exposed to music.

13 Results: The plants exposed to music grew on average 3 cm more every other day verses the plants not exposed to music. Plants 8 and 9 of the nonmusical set didn’t grow at all. Plant 2 on the musical set grew the most at 32 cm. **You would then make a graph and data table displaying all plant growth.

14 Independent variable- music Dependent variable- plant growth Constants- amount of soil in plants, size when started, amount of light received, amount of water received. Control- plants not exposed to music.

15 Conclusion- –I proved my hypothesis correct. The plants exposed to music did grow on average higher than the plants that were not exposed to music. I think this happened because the vibrations in the air provided stimulation to root growth. In the future I would test tomato plants instead of carrot plants.


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