High School Science Fair Topics

High school science fair topics are more competitively judged and often count for a percentage of your final grade. It can be hard to choose a topic that will stand out against the rest. Generally, the judges don’t want to see demonstrations or models; they want to see an actual experiment and the scientific method that led you to your conclusion.

I recommend these printable science project plans for K-12 for hundreds of great project blueprints and this step-by-step guide for doing an award winning science fair project. Also be sure to check out these fun science kits as a fast, simple way to get started on your science experiment.

One science fair project for high school students would be to see exactly how “permanent” permanent markers really are. To do this project, you will need a few different materials to test the marker on; plastic, paper and fabric, and a few different solvents to try and remove the marker; water, rubbing alcohol, varsol and vinegar and, of course, some black permanent markers.

First you will need to draw a thick black line all the way across each testing surface; the plastic, the paper, and the fabric, and then break the line into four sections by drawing three lines the opposite way on the paper of the thick line, and then let it dry for about 20 minutes.

After it is dry, apply a few drops of water to one section on the plastic, a few drops of rubbing alcohol to another, vinegar to another, and varsol to the last section. Repeat this process for the paper and fabric. Did any of the solvents take the permanent marker off?

Where would you like to go next?

...See more of our free science experiments by age group, science type, or an alphabetical listing of all experiments?

...Download printable science project plans for K-12?

...Get step-by-step instructions on how to do an award winning science fair project?

...Or pick up science kits for your project?

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High School Science Fair Topics Page