November 21, 2011 | 4
Is a looming science fair project keeping you up at night? Has the teacher sent home an “informational packet” that requires your child to bring back a completed project? Does the teacher’s kid win the school fair every year anyway? Fear not – help is here! I have launched a new (and free) website/blog to help parents help kids complete exciting, enjoyable, and technically correct science fair projects – even if it is due… tomorrow. So let’s get started.
The first you thing you need to know is that a science fair project is different from a school report on a special topic like whales, planets, or climate change. It is also different from making a model such as a volcano or solar system. A science fair project involves conducting an experiment to answer a question or solve a problem. The key to a successful project is combining the correct use of scientific method with an original idea.
First, learn the basics of the scientific method
Next, you have to find an idea. This is unquestionably the hardest part, so here are 3 strategies for finding an original idea, ranked from easiest (good enough) to hardest (best):
In all cases the independent variable (aka manipulated or explanatory variable) is the one you will manipulate (pumpkin weight, pumpkin volume, pepper size) and the dependent variable (aka response variable) is the one you will measure (number of seeds inside, size of seeds inside) in your experiment(s).
• frequency (how often something happens)
• angles and/or direction
Examples of qualitative variables would include:
• color: red, blue, green, yellow, orange
• gender: male, female
• size: small, medium, large
• age: old, young
Now that you have identified what you are able to measure, ask a question as to how that variable changes as a function of time (hourly, daily, weekly, etc.), or space (distance from something, distance along a path, within an area of interest, etc). Along the same lines, you could build a piece of equipment (just search for “how to build a” … thermometer, barometer, secchi disk, etc) as part I of the project and then use that equipment to answer a question as part II.
This would be my observation. My question becomes: Do spiders avoid coconut oil? Can you make a hypothesis and design an experiment around this question? Try it before reading on.
Here are some hints: My hypothesis could be (I would have to pick one):
The hypothesis often yields clues about what the experiment will need to be. Here I would need well defined areas with and without coconut oil and then I would need to count the number of spiders that are in those areas. The details are up to you!
Along the same lines, you could also flip through your science text book and look for interesting relationships or factoids. For example: Does cricket chirping track with the phases of the moon? Try again to design this project before reading on.
Hints: My hypothesis could be (pick one)
For an experiment, I would need to monitor the phase of the moon (independent variable) and measure the frequency of chirping (count the number per unit time). Again the details are part of your project design.
Good luck and have fun! If you like what you have read, and want more tips and guidance, come visit my website and blog (http://science-fair-coach.com). It is designed to help parents, teachers, and other mentors (that are not scientists) help kids complete interesting, fun, and technically correct science fair projects. Although the information targets 3rd through 8th grade students, the details will be useful for all first time participants. It will also help those that don’t want to win the science fair, but rather desperately need the good grade or extra credit in science class.