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Hands-on experiments, builds and ideas

Find something to experiment with, build or test.

Hands-on experiments, builds and ideas for curious people — kids, families, students, teachers, makers and engineers.

Free to browse and free to publish. No science background needed.

People running hands-on experiments at home and in a classroom, recording measurements and sharing results

Experiments and builds people are running right now

Every one has materials, steps and real recorded results.

Browse everything
Does sunlight affect plant growth?
BiologyEasy

Does sunlight affect plant growth?

Grow identical bean seedlings under different amounts of daily light and measure their height every day.

Time
1 weeks
Cost
USD $8
Grade
48
Fair potential 9/10Explore Experiment
Does water temperature affect dissolving speed?
ChemistryEasy

Does water temperature affect dissolving speed?

Time how long sugar takes to fully dissolve in water at several temperatures.

Time
1 day
Cost
USD $6
Grade
48
Fair potential 8/10Explore Experiment
Which paper airplane design flies farthest?
PhysicsEasy

Which paper airplane design flies farthest?

Fold three plane designs from identical paper and measure flight distance across repeated throws.

Time
1 day
Cost
USD $3
Grade
49
Fair potential 8/10Explore Experiment
Does surface texture affect friction?
PhysicsEasy

Does surface texture affect friction?

Roll a car down a fixed ramp onto different surfaces and measure the stopping distance.

Time
1 day
Cost
USD $10
Grade
48
Fair potential 7/10Explore Experiment
Which material provides the best insulation?
PhysicsMedium

Which material provides the best insulation?

Wrap identical jars in different materials and track temperature loss over an hour.

Time
1 day
Cost
USD $12
Grade
510
Fair potential 9/10Explore Experiment
Does soil type affect water absorption?
Earth ScienceEasy

Does soil type affect water absorption?

Pour a measured amount of water through different soils and measure what drains out.

Time
2 days
Cost
USD $12
Grade
49
Fair potential 8/10Explore Experiment

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How it works

  1. Step 1

    Pick an experiment

    Filter by what you want to do, subject, time, cost and where you can do it.

  2. Step 2

    Run it step by step

    Follow clear steps with the materials, tools and safety notes laid out for you.

  3. Step 3

    Record what you found

    Log your measurements and photos — then publish it so the next person can try it.

Made something worth sharing?

Create reproducible experiments and builds that other people can try. Write it up once — your question, what you used, how you tested it, what happened — and someone else can run their own version and tell you how it went.

Create an experiment or build

Publishing is always free. You can charge for a premium write-up later if you want to.

  1. 1

    What do you want to find out?

    Your question, in one plain sentence

  2. 2

    What do you need?

    Materials, tools and any safety notes

  3. 3

    How will you test it?

    Steps anyone can follow at home or in class

  4. 4

    What happened?

    Your measurements, photos and takeaways

What will you try first?

Browse what the community has published, or start with a question of your own.