2 What is the scientific method? The Scientific Method involves a series of steps that are used to investigate a natural occurrence.We will study the steps of the scientific method and eventually design our own experiments.
3 Steps of the Scientific Method Problem/QuestionObservation/ResearchFormulate a HypothesisExperimentCollect and Analyze ResultsConclusionCommunicate the Results
4 Steps of the Scientific Method Problem/Question: Develop a question or problem that can be solved through experimentation.
5 Steps of the Scientific Method John watches his Grandma bake bread. Grandma explains that yeast eats sugar in the bread dough and releases gas which makes the bread rise. John wonders – Will the amount of sugar in the recipe affect the size of a bread loaf?
6 Steps of the Scientific Method Observation/Research: Make observations and research your topic of interest.
7 John researches how baking and fermentation works John researches how baking and fermentation works. He keeps all of his research information in a journal.
8 Steps of the Scientific Method Formulate a Hypothesis: Predict a possible answer to the problem or question.
9 Hypothesis If IV then DV. The hypothesis is an educated guess about the relationship between the independent and dependent variables.If IV then DV.
10 What are IV and DV?Independent Variable – the factor that is intentionally manipulated or changed in an experiment. Valid experiments have only one independent variable.Dependent Variable – the factor that may change as a result of changes made in the independent variable. The dependent variable must be measureable.
11 “If more sugar is added, then the bread will rise higher.” After talking with his teacher and conducting further research, he comes up with a hypothesis.“If more sugar is added, then the bread will rise higher.”
12 Steps to the Scientific Method Experiment: Develop and follow a procedure.Include a detailed materials list.The outcome must be measurable (quantifiable).