"Molecule Shapes" is an educational simulation in HTML5, by PhET Interactive Simulations at the University of Colorado Boulder. For a description of this simulation, associated resources, and a link to the published version, visit the simulation's web page.Try...
Simulation screen moves up and down with the interaction Some sims involve the user to interact by moving an object such as molecule shapes and waves on a string but the entire screen and setup moves together with the touch of the finger. Please fix the screen so that it doesn’t move....