I have a science project I'm doing for my DS's preschool (I know I'm in the Homeschool group, I lurk. you guys have great ideas!) it's basically seeing the reaction of vinegar in baking soda and mixing colors.
there are 17 kids. I thought to do 5 trays of Baking soda split between them. but how do I give them the colored vinegar without giving them bowls of liquid to be spilled? They are supposed to be able to drip it in like an eye dropper.
any ideas would be appreciated!