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Science Fair Project Planning
The outline here follows the stereotypical "Scientifc
Method"...THIS IS NOT the only way science is done but
appears to be the procedure expected and accepted at Science
Fairs...
Check
out winning projects from past years!
Prize
list - what to aim for this year
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Pick something you are interested in.
Since science fair projects require a lot of effort. Choose
a topic you are interested in or you will not enjoy working
on your project or learn much from it.For example, If
you like sports you could try to measure how the distance
a rugby ball travels in the air is related to the angle
at which it is kicked upward. If you like music you could
try to measure and compare the volume of sound from different
CD's to try to determine which CD's are loudest. Or you
could try to determine the effect music has on people's
emotions.
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Don't wait until the last minute to start
your project. A good project requires that you spend
a lot of time thinking about it. The judges want to test
your understanding of your project, of how it works or
other scientific and technical issues. You should also
allow enough time to repeat your experiment more than
once.
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Your experiment is to test an idea about
something, not to prove you are right. Don't get upset
if your experiment demonstrates that your idea (hypothesis)
is incorrect. You may even want to revise your hypothesis
in light of what you find out from your experiments, especially
if you find a more interesting line of research.
Practical hints for Science Fair Projects
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Defining a problem
- You’ll want to pick a subject for your science project
that you like. If you're not sure what you would like
to do, consult with local professionals in the subject
area you would like to investigate. Many people would
be glad to help, they just need to be asked. Also, continue
to keep in touch with them, as they could give you advice
and direction throughout your project.You need to find
out some background information on your topic and try
to understand any terms associated with your subject
that you’re unfamiliar with. From here you will start
to see GAPS in our knowledge, the possibility
of a project is beginning to show itself!
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Formulating a hypothesis
- Come up with an idea about something you want to test.
A hypothesis is just an idea of what you think might
happen under a specific set of conditions. Setting a
hypothesis at the beginning is to keep you focused on
answering a specific question and to keep your experiment
on track. It is not intended to lock you into one idea
that can’t be changed later on when you find that it
was incorrect. An example of a hypothesis would be:
Does cigarette smoke have a damaging effect on plant
growth?
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Designing your experiment
- Variables: Keep things as simple as possible.
A variable is a condition of the experiment that you
could change to affect the outcome, eg, temperature,
amount of light, etc. It’s much better to test only
one variable thoroughly.
- Controls: You need to have a standard to test
your experimental results against. For example, if you're
studying the effect of cigarette smoke on plant growth,
you will probably keep some plants that were not exposed
to cigarette smoke to compare them the others to. The
plants that grew in the same conditions except for being
exposed to cigarette smoke are called "controls". Most
experiments will have controls and it’s worth taking
time to figure out what a good control would be for
your experiment.
- Sample Size: You will need to have several
"subjects" in your experiment. For example, you’ll need
to test the effect of cigarette smoke on several plants,
not just one.
- Time: Allow enough time for complications if
things don’t go right the first time. You might need
to start your experiment over again. Allow 6-8 weeks
to complete the experiment. It is usual for an experiment
to be repeated. This needs to be taken into account
as well.
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Collecting data
- Keep a detailed notebook: Don’t cross anything
out, you might need to refer back to it later. Entries
should be dated with the date and the number of days
into the experiment. Include all observations, don’t
assume you’ll remember points and particulars. What
might not seem important at the time might be an important
result later and might actually support your conclusion,
so you’ll want an accurate record of it.
- Quantify your results by reporting things in
numbers, not just observations. For example, say that
your plants grew 1 centimeter. Don’t say that the plants
"look bigger today than they did yesterday". Record
your numbers in a table. These are "raw data",
a list of numbers, and should not appear in your finished
project. We will turn this list of numbers into a picture
later on - a GRAPH.
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Forming a conclusion
- Did your data support your hypothesis? If not, that’s
a result too. It doesn’t mean that the experiment didn’t
work. Also, consider other possible explanations for
your results. Did your treatment kill your plants or
was it that you forgot to water them? You’re not out
to "prove" your hypothesis. Think more along the lines
of "here’s what I thought was going to happen and here’s
what actually happened" and then go on to explain why
you think it happened the way it did.
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The Final Presentation Tips:
There are several essential elements to a good
presentation: Check
out this one!
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Never show the tables of the raw data. These
are lists of numbers, and its difficult to see what is
going on. A graph is a picture - making it easier and
quicker to see a pattern in the results. If you have to
present numbers, use averages, not individual measurements.
Also, don't present the data more than once. Don't make
a line graph and pie chart of the same data.
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Report sample size (n=?). Older students should
give some statistical analysis of their data, such as standard
deviation, chi-squared or students t-test.
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Have print large enough to read from a distance.
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Be sure that you understand all the terms
and acronyms you present.
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Think about future experiments and how you
could expand on a project. Many students do science fair
projects in consecutive years. You should think about expanding
and significantly changing your project, not just repeating
the same project.
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Remember those local professionals or experts
you consulted at the start? Perhaps they could review your
draft presentation and go over how you could present your
findings. They might be able to spot areas you need to improve
on and point out the strong points that would be worth emphasising.
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