R was 16 months old at the time of this activity
We had some experimenting fun today! I put a few drops of food colouring at the bottom of six small plastic cups (a different colour in each cup). I then added a scoop of baking soda to each cup. I gave R a squeeze bottle (an empty bottle of sriracha sauce since that’s what I had on hand – or you can use painting bottles that I had used for subsequent activity here) filled with vinegar and she worked her hand muscles as she squeezed the liquid into the cups. She squealed with delight as the chemical reaction between the baking soda and vinegar caused the food colouring to come bubbling up. When she emptied the bottle of vinegar, she began mixing the colours together and the bubbling continued on. She absolutely loved this activity!!