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Scientific Method notes and flow chart
5-6 Scientific Method notes and flow chart
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What is the Scientific Method?
process It is a ______________________ used to find __________________ to questions about the world around us. answers
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Is there only one Scientific Method?
What do you think?
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Is there only ONE “scientific method?”
No, there are several versions of the scientific method. Some versions have more ___________, while others may have only a few. However, they all begin with the identification of a ____________ or a ____________________ to be answered based on observations of the world around us and provide an ________________ method for conducting and analyzing an experiment. Check this next video out…. steps problem question organized
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observations Step 1: Make of the world around – what makes you curious? What do you wonder about? Step 2: Ask a – something that you want to learn from what you’ve observed – do on the topic to educated yourself. question research
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Often written as an “If,...then” statement.
Step 3: Form a Hypothesis eDUCATED GUESS an ______________ ___________ or ____________of what you believe will occur. It is based on the details you’ve observed and your research of the topic. prediction Forecast Often written as an “If,...then” statement.
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Step 4: Conduct an Experiment
orderly Plan out an ________________ (step-by-step) procedure with the goal of finding the answer to your question. An experiment is a test, trial, or procedure for the purpose of discovering something ___________________. unknown
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Here are some good experimental steps to follow when experimenting:
Design and plan out your experiment Make a list of all materials used Keep detailed notes of everything you do (making pictures is always a good idea too) Identify Your Variables Keep a chart/graph/list of all data such as measurements that you collect during your test. Perform your test at least 3 times… All good scientists perform tests at least 3 times to make sure the results are reliable
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Information might be qualitative or quantitative.
Step 5: Analyze the data What is Data? It is __________________ gathered during an experiment. information Information might be qualitative or quantitative.
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How to analyze data? Review all the data (measurements and observations) that you collected during the experiment. In order to determine Your Results – what answer did you get?
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Step 6: Make a Conclusion
summary This is a detailed ____________________of the experiment's results, and how those results match up to your hypothesis. You have two options for your conclusions: based on your results, either (1) your hypothesis is supported, or (2) your hypothesis is rejected. You can not prove your hypothesis with a ___________________experiment, because there is a chance that you made an error somewhere along the way. single
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To end the process you want to …
Communicate _______________________________Your Results Create graphs and charts to show your results Create a presentation to show your experimental procedures Present to an audience
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Valid results or not? To be really sure of your results you should try your experiment several times to see if you get the same results. You need to rule out accidents and things you may have forgotten to consider. If the results do not support the hypothesis, then you need to go back to the drawing board and design a new hypothesis and experiment and start over again.
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What’s the point? Theory vs. Law
Scientist use these skills to develop Theories about what they observe and inferences they make. Scientist will test their theories to try to prove their predictions using the scientific method to make a scientific law. A Scientific Theory – is an observation made that may or may not be true; meaning is has not or cannot be proven to be true. Example: Big Bang Theory; Theory of Evolution A Scientific Law – has been repeatedly tested and proven to be true. Example: Law of Gravity
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Data Question & Research Hypothesis Start here Observation …Or is it?
Conclusion Data Hypothesis Plan Gather Materials Follow steps …Variables
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Let’s put it to the test…..
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