Frozen stars are fun anytime of the year! Especially if you have a Frozen movie fan at home. We love baking soda science experiments and ice melting activities too. This time we combined the two for some cool summer science play and an easy 4th of July activity. Try this fun fizzing chemical reaction preschoolers will love!

Fizzing Frozen Stars Summer Science Activity Independence Day or 4th of July activity tooPin

Enjoy Frozen Stars For Summer Play

Fun summer science for kids! These frozen stars are simple to make and also make a great patriotic or 4th of July science activity. Great for a hot day outside!

Make sure to set up this activity ahead of time as you will need to pop the baking soda stars into the freezer before they are ready to use.

Kids will love testing and retesting this simple chemical reaction, so I always recommend having extra vinegar on hand. If you are working with a group of kids, use bowls and one or two stars each!

Don’t like the smell of vinegar? Try this activity with lemon juice and baking soda instead! Since lemon juice is also acid, it produces a chemical reaction when combined with baking soda. Check out our lemon volcanoes!

What happens when you mix baking soda and vinegar?

The science behind these fizzy frozen stars is all about the baking soda and vinegar, and the fizzy bubbles that result!

When the acid (vinegar) and the base (baking soda) mix together, a chemical reaction happens. The baking soda and vinegar get used up in making a new substance, a gas called carbon dioxide. 

The fizzing bubbling action you can see and even feel if you put your hand close enough is the gas!

All three states of matter are present: liquid (vinegar), solid (baking soda), and gas (carbon dioxide). Learn more about states of matter.

Fizzy Frozen Stars

To make your frozen stars you need baking soda, water, and an ice cube tray. I had gotten star shaped ice cube trays from the dollar store last year and of course saved them for play this summer!

Supplies:

  • Star Shaped Ice Cube Tray (check the dollar store)
  • Baking Soda
  • Water
  • Blue Food Coloring
  • Glitter (optional)
  • Eyedropper, Baster, Big Spoon
  • Tray
  • Container

Instructions:

STEP 1. Start by slowly adding water to a good load of baking soda. You want to add just enough until you get a crumbly but pack-able dough. It should be moldable or packable in your hands, not runny. Add glitter to the mixture if you like.

STEP 2. Spoon the baking soda mixture into the ice cube trays and put them in the freezer overnight.

STEP 3. Pour a good amount of vinegar into a jug. Add food coloring.

I added a few drops of red and blue food coloring to 2 separate containers to color the vinegar. We ended up only using the blue vinegar so it wouldn’t become a muddy color.

YOU MIGHT ALSO LIKE: Patriotic 4th of July Sensory Activities

Frozen Stars Baking Soda Science Set UpPin

These frozen stars were a big hit. All kids love the chemical reaction between baking soda and vinegar! This play lasts longer because you are also melting the frozen stars! We played outside on a hot day, so the sun helped us along.

YOU MIGHT ALSO LIKE: Frozen fizzing castles activity

Frozen Summer Science Baking Soda SciencePin

I am pretty sure if you got rid of the themed tray, this would be a fun activity for a fan of the movie Frozen! 

IF YOU LOVE THE MOVIE FROZEN: Try our Frozen inspired slime recipe!

Using eyedroppers for our frozen star’s activity is also great fine motor practice. They are one of our favorite science tools and are always on hand for ice play activities!

Frozen Summer baking Soda Science Eye DropperPin

Fizzy baking soda science appeals to preschoolers because of the wonderful visual sensory appeal the chemical reaction creates.

Do you feel the fizz? There is so much to talk about here with your kids. Simple and fun preschool science experiments are the best!

More Fun Summer Activities

7 Comments

  1. Fizzing science never gets old for kids! My son LOVES this stuff! And I bet, like you said, a Frozen fan would too!

  2. We’ve just done something like this about a week ago. My girls loved it, we used a bowl instead to contain that mess.

  3. This is really creative! My children will love it. I’m planning to do this for a July 4th fun activity.
    I’m headed over to share this pin on our Independence Day Celebration board at Pinterest!
    Thanks for the inspiration 🙂

  4. This is so clever, love it! Thanks for sharing – can’t wait to try it out!

  5. Pingback: 5 Easy Science Lessons You Can Explain to Your Kids This Summer - Raising My 5 Sons

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