Here’s something else I found on Pinterest that’s really fun for kids. Mine spent at least an hour at this. We went out and came back and they played some more. Then, the little one put way too much vinegar in and it got flooded. The fun was over at that point. When you leave it and it dries, it get’s crisp. But that was before the flood happened.
All you need for this is a bowl of baking soda, white vinegar and food colouring.
I purchased a larger quantity of baking soda from the bulk store. The 2 bowls that you see cost me just over $2. I already had vinegar and food colouring at home. I got the little bottles from the craft section of the dollar store. 3 for $1 or something like that. I also saw different types of bottles in the cosmetics section. Browse the whole store until you find something you like. Just make sure the lid screws on well or you’ll have a big mess.
Fill the bottles with vinegar and a few drops of liquid food colouring. Let the kids drop the vinegar into the baking soda and see what happens. Fizz. Just like the volcano that you may have made in elementary school for the science fair.