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Science fair topics

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Science fair topics are perhaps the hardest and yet most important part of a science fair project. In fact, coming up with a good science fair topic can be even harder than carrying out the science fair project!

Of course, taking time to choose a good science fair topic is worth it. Make sure that you come up with a science fair topic that you are truly interested in – if you do not, then the work that you have to do to complete your project will be horribly tedious and hard to complete. Also, make sure that you come up with a fairly specific idea. You are going to have a heck of a hard time if you choose as your science fair topic “Geology” – such a topic is so big it will be overwhelming. Instead, you should narrow it down to something more akin to “A comparison of the porosity of different types of soil in my neighborhood.”

Those are just a few hints to help you with your science fair topic, now here are a few science fair topics for you to consider:

Science Fair Topics for Geology

· build a working model to show how earthquakes are caused
· make your own fossil
· use an air-pressure model and demonstrate the eruption of a volcano
· demonstrate “weathering”
· grow crystals

Science Fair Topics for Astronomy

· build your own sundile
· determine how many stars can be seen from your school or home
· explain the phases of the moon
· create your own constellations from the stars that you can see from your school
· show why the sun is hot
· build your own telescope
· show the effects of the moon on the tide
· measure the diameter of the sun, earth, or moon

Science Fair Topics for Chemistry

· Which brand of microwave popcorn leaves the most unpopped kernels?
· Make a baking soda volcano
· Make a potato battery
· Make your very own soap
· Compare environmentally friendly antifreeze to regular antifreeze (with help from your parents!)
· Do fat candles burn faster than skinny ones? Colored ones faster than white ones?

Science Fair Topics for Biology

· Do plants grow better in soil or water?
· Does talking to plants or playing music help them grow?
· Can a plant grow upside down?
· How does salt water affect plant growth?
· Do boys and girls have different resting pulse rates?
· How does caffeine affect a person’s blood pressure or their heart rate?
· Do ants act differently and react differently in the dark?
· Does the size of a pumpkin affect the amount of seeds inside? What about with other squash or fruit?
· Do boys or girls have better manners?!

These are just a few science fair topics to help you get the ball rolling. You can, of course, try out any of these topics, but it will be even more rewarding if you come up with your very own twist on such a topic or a completely different science fair topic altogether.

Homeroom Teacher has the best selection of Science fair topics at the lowest prices!

Related information:

Easy science experiments
K ids are naturally curious. As soon as they are able to form sentences they are asking one question after another. Explore with them.

Cool science fair projects
Students who dread the science fair need cool science fair projects—it may even make them realize that learning science can be fun!

Middle school science fair projects
We know of several middle school science fair projects that may be perfect for your middle schooler.

High school science fair projects
The air pressure around us affects the weather.

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