Free · Pause and inspect particle motion

Atom Motion Model for Kids

Explore a simple helium, carbon, or neon model with moving dots and clear pause controls.

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

Atom motion model

Show particles moving around a simple model, then pause to inspect it.

Private and local
Your ideaWatch two bright particles circle a small center.
Start with an example
Live Mo.js previewHelium
8 particles

Tap to move the center of the model.

Save your motion

Keep an animated SVG, one still frame, a PNG, or an editable project.

Your taps and project stay in this browser. Preview motion uses Mo.js 1.7.1 under the MIT license.

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

Three simple steps

How to use it

  1. Pick one clear example, then press Play or tap the stage.
  2. Change the shapes, colors, distance, particle count, or time.
  3. Save an animated SVG, still frame, PNG, or local project.

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.