Choosing a general stem project
These projects cross subject boundaries, which makes them a good fit when your fair category is open or you simply want to test an everyday question properly.
General STEM experiments and science fair projects
Hands-on general stem projects covering cross-subject investigations and everyday science. Each one lists the exact materials, the time and cost involved, the variables to control and a data table you can fill in — so it works as a class activity or as a full science fair entry.
22 published projects in this collection
What every project includes
A research question and hypothesis, an independent and dependent variable, the variables you hold constant, a materials list with costs, numbered steps, safety guidance and a reproducibility score based on how completely the method is documented.
Projects to try
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Preparing for a fair? Read the science fair guide or record your data in the lab.
Questions, answered
Are these General STEM projects suitable for a science fair?
Yes. Each one is a testable question with something measurable, and the project workspace walks you through the write-up judges expect: question, hypothesis, variables, procedure, results and conclusion.
What does each project include?
A research question and hypothesis, the independent and dependent variables, the variables to hold constant, a full materials list with costs, numbered steps, safety guidance and a data table you can fill in as you test.
How much do these projects cost, and how long do they take?
It varies, so every project page states a cost estimate and a realistic time estimate up front. You can rule a project in or out before buying anything.
Do these projects need adult supervision?
Some do. Every project lists its hazards and whether adult supervision is required in an at-a-glance panel on its page, so you can check suitability before you start.