1. Scientific Method Review

2. Scientific Method Ask a Question: –state the purpose of what you are trying to figure out Form a Hypothesis: –a tentative explanation of what you think will happen –written in an “if, then, because” statement

3. Experiment: –Testing your hypothesis –Parts: Control- used as a standard, kept constant throughout the experiment Variables- things that are changed throughout the experiment –Relevant- affects the outcome »Independent- the variable that the scientist chooses to change »Dependent- the variable that automatically changes during the experiment –Irrelevant- do not affect the outcome of the experiment

4. Data: –Collection of information from observations made by the scientist Quantitative- number based Qualitative- descriptions based Observations made using 5 senses or instruments –Direct Observations- made with your senses –Indirect Observations- made using instruments –Be careful of inferences = assumptions or guesses made based on the observation. Can give false conclusions –Data turned into: graphs, charts, descriptions

6. How Observant Are You? Who Did It?

7. Conclusion: –Summary of Data –Must include: Restate the hypothesis Accept or reject the hypothesis AND explain why Describe the results of your data related to your hypothesis Errors and suggestions for improvement

9. Other Important Ideas Theory- well tested model that explains a phenomenon Law- describes mathematical statements on relationships accurately Limitation- condition on an experiment Replicates- a repetition of an experiment without changing any variables Trials change the independent variable and repeat