The baking soda and vinegar reaction is our No. 1 science experiment that is versatile for each holiday! We have found creative ways to explore preschool science all year round. Even Earth Day should have a baking soda and vinegar reaction like this fizzy Earth! Open the kitchen cupboard, and let’s get started!


Fizzy Earth Day Science

Add this simple Earth Day baking soda science activity to your Spring theme lesson plans this season. Let’s get started if you want to explore baking soda and vinegar activities. While you’re at it, make sure to check out these other fun Earth Day activities.

Our science activities are designed with you, the parent or teacher, in mind! Easy to set up, quick to do, most activities will take only 15 to 30 minutes to complete and are heaps of fun! Plus, our supplies lists usually contain only free or cheap materials you can source from home!

Here we have a fun baking soda and vinegar chemical reaction with an Earth Day twist!

Free Printable Earth Day STEM Guide


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    Earth Day Science Experiment

    Let’s get right to exploring this chemical change with baking soda and vinegar. Head to the kitchen, open the pantry, and be prepared to get a little messy. Make sure to have a tray and paper towels available for spills!


    • Plastic mini cups
    • Round tray or pie dish
    • Eyedropper, squeeze bottle, or meat baster
    • Baking soda
    • Vinegar
    • Food coloring

    TIP: A round serving tray or pie plate makes the perfect base for your Earth. You can easily do without the cups and add the baking soda to a round pan or pie plate.


    Your kids should easily be able to help you set up this baking soda and vinegar experiment, too!

    STEP 1:  Set up the round tray or pie plate with the mini plastic cups. As many as you can fit!


    STEP 2: Now, fill each cup halfway with a spoonful of baking soda!


    STEP 3: Add several blue or green coloring drops to each cup. Then, think about where you want your continents and oceans to go!


    STEP 4: Now it’s time for the excitement! Set out a bowl of vinegar for eyedroppers or meat basters. Alternatively, you can fill a squeeze bottle with vinegar. Add vinegar liberally to your baking soda, and watch what happens!


    Baking Soda and Vinegar in the Classroom or at Home!

    Kids will love testing and retesting this simple chemical reaction, so I recommend extra vinegar. If you are working with a group of kids, use small trays and just a few cups 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 volcano!

    This science experiment will get messy, so add a tray underneath it all for easy cleanup. I guarantee kids will want to try this fizzy earth repeatedly. Have a gallon of vinegar ready!


    Baking Soda and Vinegar Reaction

    What is this Earth Day science experiment all about? When the acid (vinegar) and the base (baking soda) mix, a chemical reaction occurs.

    The baking soda and vinegar are used up to make 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, which is the result of the two ingredients mixing!

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

    Read more about Baking Soda and Vinegar experiments here.



    Click here for all of our easy Earth Day Activities.


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