Sink or float experiments are so easy to set up. It’s what I set up when I really, really need a few minutes. Because it takes practically no time to set up and can be done with anything (well, anything you don’t mind getting dunked in water!).
Set Up the Sink or Float Experiment
- plastic tub (it’s best if it’s clear)
- school supplies: pencil, colored pencil, paperclip, tape, gluestick, crayons, pencil sharpener, marker, eraser, rubber bands, ruler, pen, chalk, binder clips..anything you can think of!
My kids picked up one object at a time, looked at it, felt it, and predicted whether it would sink or float when they put it in the water. And then they dropped it in the water (definitely their favorite part!).
After they went through all the supplies (and then took them out and did it again), they decided to see if they could make any of the objects that were floating sink. So they did things like clip the marker (which floated) with the binder clip (which sank) to weigh down the marker.
This was a super fun back to school activity. And because we did it outside, all we had to do was dump the water, and any spill evaporated. The best clean up is no clean up, right?