Build the pressure.

Volcano Lab is an interactive beta from Learning Frontier, created and maintained by ACED. Updated September 17, 2026. For curious learners aged 12 and up; allow approximately 15–20 minutes. No prior geology is required.

Predict how temperature, silica, and gas affect an eruption. Keep an experiment as A, change one ingredient in B, and explain the difference. Then try the same gas change in a more fluid mixture: does it behave the same way?

This is an illustrative teaching model, not a hazard forecast. It has not undergone representative learner testing and makes no claim of proven learning effectiveness.

Use Tab to reach controls and arrow keys to adjust sliders. Rotate with the left and right buttons or arrow keys on the landscape; use + and − there to zoom. Pause and use the timeline to inspect a still moment. Your device’s reduced-motion preference pauses automatic playback.

Numerical readings and explanations accompany the visual model. Full screen-reader and device testing remains pending. If the landscape cannot render, the educational notes and linked sources remain available.

No account, name, or email is required. Experiment settings stay in this page and reset on reload. The lab does not add analytics, cookies, or browser storage. Fonts are requested from Google; the hosting provider may process operational access data.

Share the public lab link freely. USGS photographs and their credits are identified beside each case study. The landscape uses AI-generated illustrations. Free access does not grant a separate open-source or artwork reuse license.