The other day I did a quick exercise with Lady P (mostly to keep her entertained while I made dinner). I gave her baking soda, vinegar and a dropper. She made mini volcano eruptions in a…cocktail glass, I’m ashamed to say (I didn’t have any test tubes) and I let her go with it. She was really interested in this activity for quite a while. This would be a great activity for older ones who are learning about volcanoes but I just used it as messy play. It helps her with her pincer grab, it teaches her about simple kitchen science and it’s fun!