This week was our final week playing with Bicarb and vinegar. Next week we’ll be having fun with home made paint. A few days ago I made some Bicarb balls. I didn’t follow any recipe, simply added food colouring to water and added the water sparingly to the Bicarb until I was able to create a ball. I repeated until I had enough (in different colours) for the activity I had planned. Basically the littles had played with Bicarb in a powder form and I thought it might be interesting for them to play with it in solid form and liquid form (a misnomer on one account, being a solute rather than pure liquid, but they’re only 4 and 2 so I’m thinking they’ll not notice!).
First I dissolved some bicarb in a tray of water and set up test tubes of coloured vinegar and a pipette to squirt into the solution:
I then set up the coloured balls of Bicarb. I had let them dry thoroughly over a few days in the containers. Keeping them in the mini muffin tins I placed them into the trays, with some plain vinegar in a beaker and the pipette:
My little girls so enjoy their science time!