Our children in Ikid House love this simple activity. They love the fun of the water and bubbles! Through this they also get to strengthen their hand muscles!
Something simple that you can do at home too! You may start with water and sponges. Then add in challenges and fun little by little. You can then have different sizes of sponges, add in dish washer to water, transfer and squeeze water to another pail, then to a bottle etc.