
Marble Run Engineering
Build a track that gets the marble to the bottom without stopping.
- Ages
- 5–12 yrs
- Play
- 30–90 min
- Prep
- 5 min
- Mess
- barely any
- Energy
- calm
- Where
- on the floor
You’ll need
Things you probably have at home.
- tubes, blocks or a marble run setDon’t have it? Amazon
Optional
- tapeDon’t have it? Amazon
- a marble or small ballDon’t have it? Amazon
- cardboard
- a timerDon’t have it? Amazon
How to play
Set the goal out loud: get the marble from the top of the sofa into a cup on the floor without touching it on the way.
Build the first section with the tubes, blocks or a marble run set and test it immediately — always test after every change.
When it fails, ask where it failed rather than fixing it for them.
Add one section at a time, testing each time.
When it works end to end, time it, then try to make it slower — that is harder and they will not expect it.
What it helps with
Keep it safe
- Marbles are a serious choking hazard for younger siblings. Count them out and back in.
Make it different next time
- Add a jump the marble must clear.
- Build two runs side by side and race them.
Cleanup: Photograph the finished run before dismantling — it takes the sting out.
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