Approximately two seconds after I read Meg’s post about doing a sink vs. float experiment, I announced to my son that we were going to do a science experiment. He was stoked.
We started by using his construction hat as a bucket (I wanted something waterproof), and with minimal help on my part, he gathered supplies from around the house. We then laid down a towel and filled a clear plastic bowl with water, and then he got to work, plopping each object into the water, first predicting whether or not the object would sink or float.
He was thrilled the entire time, shrieking, “It tink!” or, “It flo!” This has become a favorite activity now, and it’s been so interesting to see what new objects he wants to experiment with.
Some of the objects we’ve used include:
- bath toys
- various dried beans including coffee beans
- rocks, gemstones and shells
- paper and stickers
- Q-tips and cotton balls
- spoons and a tea strainer
After he’s done experimenting, he wipes down each object, and lays it on a towel to dry, a part we both enjoy because it extends the life of the activity.