Proof challenge

Model River in a Tray

Build a sand or soil river in a tray, pour water in and show how it floods its banks. Post a photo or write-up.

How it works

1. Join the challenge.
2. Do the work, then post a public https link or a short write-up as proof.
3. An entry completes when it's approved or reaches 5 votes from other players. You earn +250 XP and the Finisher badge.

Sponsors

• EeCorp.comTurning great domains into working companies
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• VVentureOS.comThe operating system behind this arena

Sponsors support the arena. They don't affect scoring, reviews or who finishes. Put your brand on this challenge.

Entries