Monday, February 16, 2015


Preschool Science Experiment: Sparkly Fizzing Rainbow

Welcome spring with a sparkly fizzing rainbow science experiment!!  This is super fun science project is perfect for inside on a rainy day or outside in the sun!

Last week I shared our awesome Rainbow Volcano.  When we made it, we had some extra colored baking soda dough, so we decided to arrange it into a pan like a rainbow!

The kids loved it!  I loved it too...I still can't get over the colorful baking soda!  My kiddos knew that the baking soda would react with vinegar from our last experiment but, before they made it erupt, they wanted to do one more thing...

Can you guess? 

They wanted to make it sparkle!!

So we dumped in loads of sparkly glitter!!  

Side-note:  This is the perfect place for glitter-phobic parents and teachers!  The glitter is completely contained, and when you're done, just wash it down the sink!  ;D

Then, of course, we added vinegar to make it erupt, fizz, and sparkle even more!  We used pipettes because it lets the activity last longer while strengthening fine motor control and the small muscles in their hands.

You can make your own Sparkly Fizzing Rainbow too!!  You need these

Simple Supplies:

(click here for instructions)

* vinegar and cups to put it in

* pipettes (optional, but recommended!)

* pan to contain the rainbow and the sparkly fizzy eruptions

Easy How-To:

1- Arrange your baking soda dough in the pan to make a rainbow!  You can put the colors in the same order you find in nature (red, orange, yellow, green, blue, indigo, and violet), or just let your kiddos choose the order!

2- Use pipettes to add vinegar!  Ask your children what they think will happen when you mix the vinegar and the colored baking soda dough.  Ask them why!  Then let them get to work!!  They will see the vinegar and baking soda react to release carbon dioxide.  Carbon dioxide is a gas and makes bubbles wherever the other two reactants touch!

Note:  About half of the kiddos in our preschool group had never used pipettes before.  To make sure everyone had a successful experience, we practiced using the pipettes with colored water first.  Once everyone could successfully transfer the water, we were ready for the vinegar!

It wasn't long before we had a few extra friends join in the fun...

I hope you enjoy rainbow science projects and activities because we are on a bit of a roll!  And if you make a sparkly fizzy rainbow, I'd love to see it!!  Feel free to leave a comment here or on the PreschoolPowolPackets Facebook page sharing your rainbow science experiment fun!

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OneMommy said...

This would be such a fun activity for St. Patrick's Day! Love the colors!

Carla at Preschool Powol Packets said...

Yes, OneMommy! It would be great for St. Patrick's or any Rainbow theme! Thanks so much for stopping by!