For art/science experiment we took a few objects we found around the house. We used two sponges, and a glove (in the future if I do this again I will not pick objects that absorb water lesson learn by mommy)it still worked but not as nice as I would have liked it too. I added food coloring to water and let her spray the paper. then we removed the objects to see the shape on the paper. before we started we talked about what she thought would happen when she sprayed it, and if the paper would change and how. when she was finished she used to squirt bottle to see how far she could squirt the water. H would stand in one place and squirt the water and try to hit the deck then she would back up to see if she could still hit the deck.