Fall STEM: Sink or Float Activity

This is such a fun fall activity for children to use their brains! You can even add a sensory aspect depending on the sink/float items you choose.

Fall items you can use:


To start off the science experiment, have kids think about which items on the tray will float and which items will sink. If you’re doing this activity with multiple children, make a list of who thinks what items will float/sink so you can compare later.

Have children start experimenting! Some might be surprised about their predictions. Ask them why they thought an item would sink/float and help them find the reason why it actually floats/sinks.