Checkout "Physics by Inquiry" books and get a little lab for him setup with some basic parts and tools to do simple experiments.

Physics by Inquiry: An Introduction to Physics and the Physical Sciences, Vol. 1 https://a.co/d/7FkX3Pg

Also have him watch "The Mechanical Universe" videos they are really excellent resources that are pretty entertaining and very educational. https://youtube.com/playlist?list=PL8_xPU5epJddRABXqJ5h5G0dk-XGtA5cZ

Last edited by GCN3030; 08/31/22 11:41 PM.