1. create colored water
2. Explain it is their job to drop one or two drops in each reservoir
3. After they are done filling the tray they can then suck the water back up and put it back in the holding container
Don't have super cool ice trays like me (I think they were 99 cents at Ikea)
all you need is a baking pan, wax paper, and a sharpie
You can be even more creative with this I dotted out Kaia's name. You could make a picture or just dots its up to you!