You can start with simple physics simulations. Ten Minute Physics channel has some great basic intros: https://youtu.be/oPuSvdBGrpE?si=3HNjgo-_lruGgAaq https:/

You can start with simple physics simulations. Ten Minute Physics channel has some great basic intros: https://youtu.be/oPuSvdBGrpE?si=3HNjgo-_lruGgAaq https://youtu.be/oPuSvdBGrpE?si=3HNjgo-_lruGgAaq They have tutorials on rigid body physics, fluid sims, etc. so those can all be fun projects to explore the basics with your kid. Or you can start with a library that provides these and focus on making it interactive or game-like: https://brm.io/matter-js/ https://brm.io/matter-js/ JavaScript in the browser is an easy environment to setup and play with for this kind of thing.