In exploration lab posts, I plan to share open ended activities that are suited for older children. I see so many great sensory experiences for younger kids all over the web (and many I remember doing with my kids when they were little). I want to highlight the ones that work with older kids too. Sometimes they are the same, and sometimes you can add a little something extra because the kids are older.
A classic is vinegar and baking soda. My kids have loved this lab since they were really young. We love using muffin tins and baking sheets to pile on the baking soda. Droppers, syringes and straws are great for controlling the amount of vinegar. We like to color the vinegar and mix colors. Also, we add lots of glitter, colored sand, flowers, plastic animals and by the end, our hands to really feel the fizzing power.
This is not a science lesson. The material are simply provided and the experiments change each time. If your kids want to know the WHY, you can read here.
Do you play with vinegar and baking soda? Any new ideas that your explorations have led you to?