Holy cow! We had so much fun with our "Vinegar-Baking Soda Color Explosion" activity! You have got to try this.
I stumbled across the idea on Pinterest (here's a link to that original post). I had to test it out! If you don't have everything you need on hand, make a trip down the baking aisle at your super market. They recommended using a dropper. I don't have one, but I had some nearly-empty acrylic paint squeeze bottles that I cleaned out. You can also probably clean out some miniature shampoo bottles, if you hang onto those from hotels. If all else fails, you can probably just keep the colored vinegar in separate bowls and give your toddler a spoon to spoon it out. I imagine that method would get pretty messy, though.
Here's what you need:
