Day 10 of the 30 days to play challenge on hands on as we grow is to spend 15 minutes mixing concoctions. We did a lot of concoction mixing last winter but haven't done any in awhile. So I set up a Science Lab with colored vinegar, baking soda, cornstarch, water, ice and assorted containers for mixing.
We made a lot of predictions about what would happen when we mixed the baking soda and vinegar, baking soda and water, cornstarch and vinegar, etc. Mixing the vinegar and baking soda was their favorite.