4.2.1 Sink or float?
On this page we explore the quantity of density and what makes substances sink or float in other substances. Image courtesy Pixabay Inquiry questions Disciplinary concepts Inquire: Sink or float? Ever tried a paddle-board? It's great fun! The paddle board is made from a plastic that floats of course. But do all things that float on water need to be made from materials that float on water? What about large ocean-going...