all you need for this science fun is baking soda, vinegar, and food colouring. put some baking soda in each cup, then add some drops of food colouring, then put a little bit of baking soda to cover the drops of food colouring. give your child some vinegar and watch what happens!!! 🙂
^ before the colour came out…..
^ and after lol
and since this was so fun mymy wanted to do it again. so we experimented with other colours.