1. The Scientific Method

2. Question about coffee: Will the amount of caffeine in a coffee cup change over time?

3. Scientific method Question Research Hypothesis Procedure Data Conclusion Question Research Hypothesis Procedure Data Conclusion

4. The Steps Question: what does the scientist want to learn about? Research: Gathering of information Hypothesis: An educated guess of an answer to the question Procedure: an experiment designed to test the hypothesis Data: Information collected during the experiment Conclusion: was the hypothesis correct or incorrect?

5. Coffee Example: Question Step 1: Question: Does the amount of caffeine in coffee change over time?

6. Research Step 2: Research: study the working of caffeine in coffee

7. Hypothesis Step 3 Hypothesis: The coffee will retain the same amount of caffeine as time progresses due to the composition of the caffeine molecule

8. Procedure Step 4 To conduct this experiment I will make a full pot of coffee and pour the coffee into 4 cups The experiment will be conducted over 7 days. I will measure the amount of caffeine every 12 hours using a HPLC (High Performance liquid chromatography) if available, or D + Caf Test strips The results will be recorded systematically into a graph on the computer

9. Data Step 5 Record the information gained from the experiment

10. Conclusion Step 6 Interpret the results of the experiment and come up with a solution

11. How about this problem What would be the result of mixing blue and yellow food coloring in a glass of water?

12. Scientific Method with food coloring experiment Question Research Hypothesis Procedure Data Conclusion

13. Practice for tonight Use the steps of the scientific method to determine what will happen when mentos candy is placed in Diet coke and why that occurs

14. Review

15. END OF SHOW What are the 6 steps of the scientific method? Question, Research, Hypothesis, Procedure, Data, Conclusion Identify the part of the scientific method in the following descriptions Divide seeds into four groups of two and water one group with no water, 2 cups, 4 cups, and 8cups of water (procedure) Search the internet and library for resources discussing factors affecting plant growth (research) How will the amount of water given to a plant affect growth? (Question) Information of the amount of plant growth collected from the experiment (data) Based on research, plants receiving larger increments (Hypothesis) Based on the data, of the experiment in addition to the research, plants that are watered with an increased amount water will grow faster than those watered less. (Conclusion)