SCIENCESCIENCE
There is a method to the madness!!There is a method to the madness!!
SCIENTIFIC METHODSCIENTIFIC METHOD State the ProblemState the Problem
Gather InformationGather Information
Form a HypothesisForm a Hypothesis
Perform an ExperimentPerform an Experiment
Analyze DataAnalyze Data
Draw ConclusionsDraw Conclusions
Hypothesis Not SupportedHypothesis Not Supported Hypothesis SupportedHypothesis Supported
Revise HypothesisRevise Hypothesis
Repeat Several TimesRepeat Several Times
State The ProblemState The Problem
The first step in a scientific method is to state the problem.
EX: Are boys or girls faster at completing multiplication problems?
Gather InformationGather Information
Make observations and gather all information (communicating, measuring, inferring)
Form a HypothesisForm a Hypothesis
A hypothesis is a prediction that can be tested. It is a possible explanation about an event.
EX: Based on her experience and observations, the Dr. hypothesizes that you have strep throat.
A hypothesis always must be something you can test
Perform an ExperimentPerform an Experiment
Next perform an experiment to test your hypothesis. You need a procedure (steps to carry out experiment) & materials.
Analyze DataAnalyze DataRecord results during the experiment in a data table or experiment log. The data should then be organized into graphs or charts for easier analysis.
There are 2 types of data:
Quantitative: a type of data has precise measurements with units.
Example: 5mL or 10cm
Qualitative: a type of data that is based on descriptors. Does not include precise measurements.
Example: foam present or foam not present
Draw Conclusions
Then you use your data to come up with a logical answer.
Based on data gathered, you then want to ACCEPT, or REJECT your hypothesis.
SCIENTIFIC METHODSCIENTIFIC METHOD State the ProblemState the Problem
Gather InformationGather Information
Form a HypothesisForm a Hypothesis
Perform an ExperimentPerform an Experiment
Analyze DataAnalyze Data
Draw ConclusionsDraw Conclusions
Hypothesis Not SupportedHypothesis Not Supported Hypothesis SupportedHypothesis Supported
Revise HypothesisRevise Hypothesis
Repeat Several TimesRepeat Several Times
What next?What happens next if the hypothesis is correct???1. Develop a theoryTheory: an explanation of things or events that are based
on scientific knowledge, collected data, experiments, and many hours of observation.Ex. Cell Theory
**Many experiments are performed to test the hypothesis and if the results ALWAYS support it, then it becomes a theory
2. Scientific LawLaw: a statement about how things work in nature that
seem to be true all the timeEx. Universal laws of Gravitation
Why should the results of an experiment be published
or shared?
REPORT YOUR RESULTSREPORT YOUR RESULTS
Now you want to put your experiment in a lab report. You want to write a FORMAL Lab Report so that it can be reproduced exactly by anyone wishing to do so.
So other scientists will know about So other scientists will know about the results of the experiment and the results of the experiment and can verify them, or use them to can verify them, or use them to
develop new hypothesis.develop new hypothesis.