Sink or float explorative experiment
This experiment is intended for pre-k students and is appropriate for ages of 2+. (Although younger children may not wish to make predictions for every item)
Here are some sample items that you might wish to try.
Form a hypothesis
Will the object sink or float?
Drop the item in the water.
Did the item sink or float? Was your hypothesis correct?
Which materials were more likely to sink? Which materials were more likely to float? Do you think the shape of an item affects whether it sank or floated?