The Scientific Method!

Scientific method- The basic
steps used by scientist in solving problems and uncovering facts.
Steps in the Scientific Method
(PIHERC)
-
State the PROBLEM. What
question are you trying to find an answer to? The problem should be in
the form of a questions.
-
Gather
INFORMATION about
the problem. Look up information at the library or ask an expert. Think
about the experiences that you have had that will help you find the answer.
-
Form a
HYPOTHESIS (an
educated guess) based on the information that you gathered. (What
do you think the answer to the problem might be? This is your possible
answer.)
-
Do an
EXPERIMENT. In
order to find the answer to a problem, scientists do an experiment. NOTE:
only one thing at a time can be changed in anexperiment.
The
Variable is the
thing that is changed in an experiment. All of the groups are the same
in the experiment except for this.
Independent Variable-
The variable you investigate to determine its effect. This is the thing
that you change. Also called the Manipulated variable
Dependent Variable- The
variable you measure to see if the independent variable has any effect.
This is the thing that changes in response to what you changed. Also called
the Responding variable.
Controlled
Variables-
Variables in the experiment that do not change. They are kept the same
in every part of the experiment.
The
Control is the group
in the experiment that does not have the variable. Not all experiment s
have a control.
-
RECORD the results that
you got from your experiment. Collect DATA. Data is
defined as recorded observations
and measurements. Usually a chart or a graph
is used to display data from an
experiment.
-
State your CONCLUSION.
Your conclusion is based on the results of your data that you gathered
about your experiment. Your conclusion tells you whether or not your hypothesis
is right or wrong. If your hypothesis is right, go to step # 7 below. If
your hypothesis was wrong, go back to step #3 above.
-
RETEST. Make sure that
your conclusion is correct by redoing the experiment.
Click on the Tennis Racket or
the Tennis Ball
Tennis Anyone? (A Webquest on the Scientific Method)
Back to The Task
Back to Step #3
Click
On The Links Below For Classroom Examples.
Cattails
Chocolate
Sunflower Seeds
Metallica
It's Electric
The Helicopter Problem
The Helicopter Problem
Sites From The Internet
Science Fair Projects and the Scientific Method
Think You Know The Scientific
Method?....
Take The Quiz
The Scientific Method Quiz
Back to Mr. Lehman's Classroom Page
blehmmms@hotmail.com