Did this in grade science fair! DIY Amazing Density Tower from Things Found in Your Kitchen by stevespanglerscience: Make objects float in the middle of a liquid with this amazing trick.
This super easy salt water experiment is the perfect science activity to teach kids about the density of salt and fresh water. Great for an ocean unit pirate week
Water Density Experiment Do Grapes Sink Or Float?
Cool Kitchen Science for Kids: Exploring the Density of Liquids- fun science…
8 science - Seven Layer Density Column - shake it up then watch them separate. FUN science experiment for the kiddos.