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HomeHolidaysValentine's Day

Dancing Hearts Valentine’s Day Science Experiment

Angela SellariBy Angela Sellari
Angela Sellari
Angela Sellari Founder of AboutAMom

Angela is the founder of About A Mom and currently acts as a content creator and editor-in-chief for the About A Mom Team. She has been a professional blogger for over 10 years. Angela has appeared…

Expertise: Content Creation & Editing View all posts →

This Valentine’s Day Science Experiment is a fun learning activity to do with the kids for Valentine’s Day. If you are looking to enjoy quality time with your children this Valentine’s Day or maybe a teacher looking for a science experiment to try out for Valentine’s Day, then give this fun Valentine’s Day science activity a try.

This easy Valentine's Day Science Experiment is a fun learning activity to do with kids on Valentine's Day. Children will enjoy watching the dancing hearts as a the baking soda and vinegar react. This simple chemistry experiment for kids is a lot of fun.

Children will enjoy watching the dancing hearts as a result of the baking soda and vinegar chemical reaction. This simple chemistry experiment for kids is a lot of fun.

Whether you are a teacher, parent or homeschooler you will love this simple chemistry lesson that uses Conversation Hearts. This is a terrific science activity to supplement e-learning or work into your homeschooling curriculum.

dancing hearts chemistry lesson for Valentine's Day

Valentine’s Day Dancing Hearts Science Experiment

This Dancing Hearts Experiment is a great way to create a science experiment right in your home. You will only need a handful of ingredients to make your candy hearts do a silly dance. This experiment is super simple and will be an amazing addition to your Valentine’s Day. Keep this experiment handy to try with all types of candy.

Dancing Hearts Valentine's Day Science Experiment - About A Mom

Can I Use Any Vinegar For This?

For this specific Dancing Hearts Experiment, you will be using regular vinegar. There are many types of vinegar and if you have something else such as apple cider vinegar, it will work just as well. The Vinegar is what will be causing the bubbly reaction in the experiment to make the hearts dance and come alive.

dancing hearts science fun

Do I Need to Use Special Containers for This Project?

For this Valentine’s Day science experiment, you don’t need any specific type of container. You can use a jar or plastic bowl to water the heart’s dance. Using a glass or clear bowl or jar will allow you to see the funny dancing hearts from all angles. I recommend using a clear jar or bowl for the best experience.

dancing hearts science experiment for Valentine's Day

Supplies Needed for this Valentine’s Day Science Experiment

  • 1 cup water
  • 1 tablespoon baking soda
  • ½ cup vinegar
  • Jar or bowl
  • Conversation hearts or other Valentine’s Day candy

Supplies needed for Dancing Hearts Valentine's Day Science Experiment

Instructions for Dancing Hearts Science Experiment

In a glass container, add baking soda to water.

Valentine's Day Science Experiment

Mix the water with the baking soda until the baking soda is dissolved. Pour water into the container.

dancing hearts science experiment in process

Add the candy to the container.

Valentine's Day Easy Science Experiment

Slowly pour the vinegar into the container.

If the candy sticks to the bottom, give it a slight stir.

Even if the candy settles, continue watching as the hearts will flip over from time to time. The candy hearts will float to the top and bubble as the baking soda and vinegar mix letting out carbon dioxide.

Play with the amounts of vinegar and baking soda to create more or less bubbles.

This easy Valentine's Day Science Experiment is a fun learning activity to do with kids on Valentine's Day. Children will enjoy watching the dancing hearts as a the baking soda and vinegar react. This simple chemistry experiment for kids is a lot of fun.

The initial chemical reaction will last from 3-5 minutes. Once the bubbles have settled you can stir with a spoon to get the hearts dancing again.

Ways to expand the activity:

  • Change the type of container
  • Change the type of candy
  • Change the ratio of water to baking soda

Be aware that increasing the depth of the water too deep makes it harder to get the candy dancing as the vinegar cannot easily get to the bottom.

About Angela SellariContent Creation & Editing

Angela is the founder of About A Mom and currently acts as a content creator and editor-in-chief for the About A Mom Team. She has been a professional blogger for over 10 years. Angela has appeared in numerous TV segments, advertising campaigns and her work has been featured by many top publications. She lives in Tampa, Florida.

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Published: Jan 20, 2021 | Updated: Oct 2, 2025

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