Presentation on theme: "SCIENTIFIC METHOD The scientific method is a series of steps and a thought process used to solve problems. Scientific Method is used every day by all sorts."— Presentation transcript:
2SCIENTIFIC METHODThe scientific method is a series of steps and a thought process used to solve problems.Scientific Method is used every day by all sorts of people…not just scientists!There are 6 steps to completion of the scientific method.
3Step #1. 1. Purpose - What do you want to learn?? What is the problem? This may begin with asking a question.Ex: What is the disease-causing agent?
4Step #2. 2. Research/Collecting Data. Observing Measuring Sampling Organizing data
5Step #3. 3. Hypothesis An educated guess CAN BE TESTED!!! Can be supported or not supported….never true or false.Written in the “if-then” form.
6Examples of “If-then” form If detergents were to be tested, then ERA would clean the best.If mice are subjected to microwaves, then they will have a shorter life span.If the virus were the true disease-causing agent, then introducing the virus into healthy tissue would cause cell death.
7Step #4.4. ExperimentProcess of testing hypothesis by gathering data under controlled conditions
8Parts of an experiment Variables = things that change Independent variable - manipulated by the experimenter.Example…amount of dog foodDependent variable-it is dependent on the independent variable. It RESPONDS to the experiment.Example…weight of dog
9Parts of experiment continued… Control - What you compare to….a standard.Constant - Something that never changes. Variables should be the only thing that is different…everything else should be held constant!Theory = suggested EXPLANATION.
10Step #5.5. AnalysisCollecting and organizing data from the experimentGraphsModels
11Step #66. ConclusionStating whether the hypothesis was supported or not supportedSum up the experiment
12There are rules & guidelines to graphing. You must always title your graph.You must always label the x & y axis including the measurements!The independent variable always goes on the x-axis.The dependent variable always goes on the y-axis.You must always mark the #’s in equal step intervals.Make straight/accurate lines. Be neat!
14We will be making LINE graphs We will be making LINE graphs. You will plot the points and then connect them with a straight line.
15LINE graph = find the relationship between two variables. BAR = show a #PIE = show %When making a graph, make sure you use all available space and make the line take up the size of the graph.Go to the following link for some exapmles: