Read the following selection,
then use the information to complete the task below. Write your answer on another piece of paper
and bring it to school when you return.
The Scientific Method
Scientists use the scientific
method to plan and carry out experiments.
These are the five steps in the scientific method:
1. Observe, ask
Use your senses
to make observations.
question that you would like to answer.
Write down what
you already know about the topic of your question.
Do research to
find more information on your topic.
2. Form a
Write a possible
answer to your question. A possible
answer to a question is called a hypothesis.
A hypothesis must be a statement that can be tested.
hypothesis in a complete sentence.
3. Plan an
Decide how to
conduct a fair test of your hypothesis by controlling variables. Variables are factors that can affect the
outcome of the experiment.
Write down the
procedure you will follow to do your test.
equipment you will need.
Decide how you
will gather and record data.
4. Conduct an
procedure you wrote down.
Observe and measure
that happens, including what you measure and observe.
data so it is easy to understand and interpret.
conclusions, and communicate the results.
tables, or graphs to display your data.
observations and data.
conclusion. Describe the evidence you
used to determine whether the experiment supported your hypothesis.
your hypothesis was supported or not.
you follow the steps of the scientific method.
You form a hypothesis, and you experiment supports it, but when you tell
other people your results, they don’t believe you.
is when the scientific method works especially well. You recorded your procedures. You have all your observations and data. All that another person has to do is repeat
exactly what you did. That’s one way
scientists can check each other’s experiments.
If another person doesn’t get the same results, you can try to figure
out why. You can ask, “Did I do
something differently? Were there
variables I didn’t control?”
can use the scientific method to repeat experiments of other scientists. This helps them make sure that their
conclusions are correct.
a letter to a friend, explaining how he or she could use the scientific method
to test a balloon rocket. Be sure to
discuss each step of the scientific method in your explanation.