Free · Guide water into three cups

Water Channel Builder for Kids

Draw simple walls and guide moving blue water from a high tank into three cups below.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup

Creative cell experiments

Water channel builder

Draw walls and guide blue water from the high tank into the three lower cups.

Active cells 0 Steps 0 Brush Wall Opening experiment
Add walls to make a path. Start motion and see where the water travels.Draw on the experiment. Arrow keys move the keyboard cursor; Enter paints.

Runs only in this tab with Sandspiel’s local WebAssembly core. No login, gallery, chat, ads, uploads, or saved creations.

Powered by Sandspiel, an open-source library available under MIT.

Three simple steps

How to use it

  1. Choose a material and draw on the large experiment area.
  2. Pick a motion speed, then start, pause, or undo while the cells change.
  3. Reset to restore the starter scene. Nothing is uploaded or saved.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.