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Fizzy Treasure Rocks

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Last year, when we played with Baking Soda Letters in the Water Table, I found out that baking soda can be dried and reused even after it has already reacted with vinegar.

After our Fizzy St. Patrick’s Day Science activity a few weeks ago, we once again had a lot of wet baking soda left over, and E and I decided to turn them into Fizzy Treasure Rocks: We took large handfuls of wet baking soda, placed a gold coin in the middle, and formed the baking soda around it.

Don’t forget to check out other Fizzy Experiments Your Kids Will Love.

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

Materials for Fizzy Treasure Rocks

S&S Worldwide PT3253 Liquid Watercolors, Grade:1 to 12, (Pack of 6)S&S Worldwide PT3253 Liquid Watercolors, Grade:1 to 12, (Pack of 6)S&S Worldwide PT3253 Liquid Watercolors, Grade:1 to 12, (Pack of 6)12 Color Cake Food Coloring Set, Nomeca Food Grade Vibrant Food Color Liquid Dye Tasteless for Baking, Icing, Decorating, Fondant, Cooking, Slime Making DIY Supplies Kit - .35 fl. Oz (10 ml) Bottles12 Color Cake Food Coloring Set, Nomeca Food Grade Vibrant Food Color Liquid Dye Tasteless for Baking, Icing, Decorating, Fondant, Cooking, Slime Making DIY Supplies Kit – .35 fl. Oz (10 ml) Bottles12 Color Cake Food Coloring Set, Nomeca Food Grade Vibrant Food Color Liquid Dye Tasteless for Baking, Icing, Decorating, Fondant, Cooking, Slime Making DIY Supplies Kit - .35 fl. Oz (10 ml) BottlesPlastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile ...Plastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile …Plastic Squeeze Condiment Bottles with Red Tip Cap 16-ounce Set of 6 Wide Mouth by Pinnacle Mercantile ...

 

We let the fizzy treasure rocks dry for several days. Try to avoid handling them as much as possible, as they can be quite fragile once they’re dry.

When we’d decided that they were dry enough, I gently placed the baking soda rocks in the water table. I also scattered some extra dried out baking soda that we hadn’t turned into treasure rocks all over the water table.

E wanted to color the vinegar green again and put yellow and blue fizzy tub color tabs in one squeeze bottle and one pitcher full of vinegar.

Then she got to work while N watched.

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

She didn’t spend that much time on the treasure rocks, though.

Instead, she decided to grab a small cup, fill it with crumpled up baking soda and add a tiny bit of vinegar. She’d wait until the fizzing stopped, add more baking soda, then add another tiny bit of vinegar. It was quite fun to watch, and she was extremely patient.

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

Only after she’d done that for a really long time did she decide to make the cup overflow šŸ™‚

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

Meanwhile, N went for mass fizzing action when he poured out the larger container all at once.

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

He chose the sensory approach to this activity and spent some time putting his hands in the foam over and over and splashing around.

Child playing in the fizzy treasure rocks sensory activities

When E was done with the squeeze bottle, he imitated her approach – he didn’t mind that the bottle was empty at this point šŸ˜‰

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

To finish off the activity, E asked for some more vinegar to work on the treasure rocks some more.

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

For some reason, neither child was interested in the actual treasures this time, but that’s completely okay. I set up the activities (sometimes with help), and they decide how to use them šŸ™‚

We used previously used baking soda to make Fizzy Treasure Rocks for a very satisfying baking soda and vinegar reaction. My toddler and my preschooler had a blast!

Are you looking for other fun and simple activities? You could try this Fine Motor Activity with Straws and Pipe Cleaners or this Simple Transportation Sensory Bin!

More Fizzy Science Activities

Fizzy Rainbow Science

Fizzy Heart Science Experiment

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