Aim- We will review the scientific method by reviewing
the stps and then putting the method to use and discussing
percent of error.
Standard 4- Science Concepts
Review- Scientific method is a way of solving problems
identify the problem
form a hypothesis
test the hypothesis
observe the test
draw a conclusion
observations are made by using
eyes, hands, smell, ears, taste (our senses)
hypothesis- an educated guess based on our observations and
Test our hypothesis- (experiment)- things might change
during the experiment.
constants- these are things that stay same
variables- things that change
independent variable- changed by
the person doing the experiment
Dependent variable- changes because
of the change in the independent
I light a candle---- The change in the wick of the
candle is now black and on fire (I made
that happen) that change is the independent
variable.... As a result of that change,
the candle wax is dripping. It is giving
off heat and light, it is soft. These are all
THE DEPENDENT VARIABLE DEPENDS ON THE INDEPENDENT VARIABLE
OR IT CAN NOT HAPPEN!!!!!!!!!
What we are trying to test is the independent variable
After an experiment....
Analyze the experiment to make sure that it was
accurate.... we do this by conducting
Accuracy is very important if we are going to prove
something. We need to use precision (exacts)
We can not round numbers or guess
Scientific ideas are then taken and a theory is formed
A lot of people have to look at your ideas and
try them...... PEER REVIEW (they test
If a theory proves to be always correct.... we call it a law!