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The Scientific Method

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Kim Ramirez

on 10 September 2013

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Transcript of The Scientific Method

The Scientific Method
Step 1: Ask a Question
The scientific method
always starts with a question.
Usually, scientists come up with questions by looking at the world around them.

What do you want to know or explain? Use observations you have made to write a question that addresses the problem or topic you want to investigate.
Step 2: Do Some Research
Find out more about your topic.
See if anyone has asked your question before. If so, what results did they get? Has anyone else asked similar questions? Ask others for any advice that they may be able to give you.
Step 3: Form a Hypothesis
Think about what you think the answer to your question would be.
Why do you think this?
There must be
logical reasoning
behind your hypothesis. Think about how you would test to see if your answer is right.
Step 5: Analyze the Data
Collect all your data and record the progress of your experiment.
Document your results in detail.
Take notes, measurements and form a graph so that you can understand what it all means. If others have done similar experiments, does your data match theirs? Does your data fit your hypothesis?
Step 6: Conclusion
Did the results support your hypothesis?
What does your data mean? Summarize the results of the experiment.
After seeing the demonstration with the
"dancing raisins,"
what questions might you have? What are you curious about? What do you want to learn?
What is the scientific method and why do we use it?
The scientific method is a process that is used to find answers to questions about the world around us.
The scientific method can be used inside and outside of the classroom. We use it every day without even realizing it when we're curious about something or to find a solution to a problem.
Today we will be taking a look at the
6 steps
of the scientific method.
Step 4: Test Your Hypothesis
Create a
procedure and conduct an experiment that tests your hypothesis. The procedure should be a fair test that only changes
one variable at a time,
while keeping everything else constant. To get more accurate results, do your experiment more than one time.
Carbon dioxide is what gives soda its fizziness. Once a soda can is opened,
carbon dioxide bubbles
start getting released to the surface until, eventually, they are all released and the soda gets flat.
What might your explanation to the "dancing raisins" be?
What did you observe during the demonstration? What did the research tell you? Is there a link between what you saw and the research that you did?
If you wanted to see how carbonation affects dancing raisins...

The only thing that you are testing is whether the amount of carbonation affects how much the raisins move. To do this, you can set up containers, each with soda that has different amounts of carbonation, and then drop raisins into each one.
Everything except the amount of carbonation should be kept constant.
Record data
for each
of the different amounts of carbonation that you tested. What were the different levels of carbonation that you used? Did the raisins move up and down? How much did they move?
Make a graph with all of your data.
Summarize the experiment and explain your results.
Did the results support your hypothesis? Did carbonation play a role in how much the raisins moved? What does this mean?
Let's Review!
Full transcript