Sink or Float
20 mins

Sink or Float

A simpler science experiment to learn what floats and what doesn't. See what materials soak up water and then sink.

indoors, outdoors, science, water

What you'll need

  1. Spongesbuy item
  2. Plastic Toysbuy item
  3. Various Household Items

Step by step guide

  1. Fill a bathtub or paddling pool.
  2. Provide the kids with a selection of items that you are happy to get soaked, some which will float and some which won't.
  3. Let the kids put the items in the water, and see what happens to each.
  4. Do it again, but see if the kids can guess which items will float and which won't.
  5. Squeeze a sponge in the water so that it soaks up the water and then sinks.