Young Scientists at Play: Coloured Balls of Fizz

dsc_0899FIZ

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 had coloured the Bicarb solution yellow so it would change the colours they added to it.
I had coloured the Bicarb solution yellow so it would change the colours they added to it.
A4 made small fizzes with her pippette
A4 made small fizzes with her pipette
Whilst B2 simply dumped in the whole jar...
Whilst B2 simply dumped in the whole jar…
gave it a good stir...
gave it a good stir…
and looked on in amazement.  Fizzes never get old!!
and looked on in amazement. Fizzes never get old!!

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:

Ready to go
Ready to go
They were eager to begin, but took the time to (impatiently) pose for a picture!
They were eager to begin, but took the time to (impatiently) pose for a picture!
A4 pipetting
A4 pipetting
B2 pipetting
B2 pipetting
Then B2 asked for the turkey baster
Then B2 asked for the turkey baster
Which she really enjoyed!
Which she really enjoyed!
I gave then some spoons to mix to maximise the fizz and we were done!
I gave them some spoons to mix to maximise the fizz and we were done!

My little girls so enjoy their science time!

20 comments

  1. Ok … Such awesomeness!!! I am SO doing this with my little guy! So – just Bicarb to water until stiff enough to make a ball? Your B2 has the most divine red hair!! Little poppet.

    1. Thank you, that’s really encouraging! My blog’s a bit top heavy with preschool posts at the moment (over Easter I wanted to change things around a bit, so my focus has been more on them). I thought it might be getting a bit boring for any one who visits my blog!!

      1. Never boring to see children having so much fun learning! At the risk of sounding gushy, even without pre-schoolers of my own, I’m loving it all – super-inspiring! Loved the art too 🙂

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