Watermelon Volcano Experiment: Easy Summer STEM

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Get ready for an explosive and fruity adventure, Watermelon Volcano Experiment combines the excitement of volcanic eruptions with the sweetness of watermelons! Today, we’re diving into the fascinating world of science with the Watermelon Volcano Experiment. We’ll guide you through the steps of creating a captivating eruption using a watermelon, baking soda, and vinegar. As we explore the science behind this bubbling phenomenon, we’ll also delve into the significance of STEAM education (Science, Technology, Engineering, Arts, and Mathematics) in nurturing young minds. So, let’s combine curiosity, creativity, and exploration in this juicy and educational experiment!

The Science Behind the Experiment

The Watermelon Volcano Experiment is a fantastic example of an acid-base reaction. Baking soda (a base) and vinegar (an acid) come into contact, resulting in a chemical reaction that produces carbon dioxide gas. The gas forms bubbles, causing the eruption that resembles a volcanic explosion. Adding dish soap enhances the foaminess, while food coloring introduces a visual spectacle to the eruption.

The Importance of STEAM in Early Childhood Education

  1. Science: Experiments like the Watermelon Volcano foster scientific curiosity, helping kids understand cause and effect while making learning hands-on and engaging.
  2. Technology: Incorporating basic tools and materials introduces kids to technology in a creative and interactive way, preparing them for a tech-driven world.
  3. Engineering: Designing the experiment and observing its results stimulate critical thinking, encouraging kids to explore engineering concepts.
  4. Arts: Adding food coloring and creating a visual spectacle with the eruption nurtures artistic expression within the context of science.
  5. Mathematics: Measuring and mixing ingredients involves basic math skills, promoting numerical understanding.

More Easy Fizzy Baking Soda and Vinegar Experiments

Do you want to try more experiments with baking soda and vinegar? Here is our list of the best fizzy experiments:



Before we begin, gather these materials to create your Watermelon Volcano Experiment:

  • Small watermelon (hollowed out)
  • Baking soda
  • Vinegar
  • Dish soap (optional, for extra foam)
  • Food coloring or liquid watercolours (optional, for visual effect)
  • Spoon
  • Squeeze Bottle
  • Tray or container (to contain the mess)
  • Safety goggles (to ensure safety)

The Watermelon Volcano Experiment

Let’s dive into the juicy experiment that blends science and creativity:

  1. Cut the top off a whole watermelon. Hollow out the watermelon to create a crater-like cavity. Save the fruit for later to eat after the experiment! Place the watermelon inside a tray to help contain the mess. If need slice a thin layer of the bottom of the watermelon to help it sit straight without being held in your tray.
  2. Add a generous amount of baking soda to the cavity.
  3. Optional: Add several drops of food coloring or liquid watercolors to enhance the eruption. We used red liquid watercolour. I often prefer using liquid watercolours over food coloring as it doesn’t stain as easily as food colouring.
  4. Inside your squeeze bottle combine 3:1 parts vinegar and dish soap.
  5. Slowly squeeze the vinegar/dish soap mixture into the watermelon and watch as the eruption unfolds with bubbly delight!

The Watermelon Volcano Experiment is a thrilling and educational experience that bridges the gap between scientific exploration and creative expression. Through hands-on activities like this, kids not only learn about chemical reactions but also develop essential skills in observation, problem-solving, and critical thinking. STEAM education lays the foundation for well-rounded, curious minds, nurturing a lifelong love for learning. So, gather your materials and dive into this explosive adventure that fuses science, creativity, and learning into one juicy concoction!

Age Suitability

This activity is good for toddlers aged children 2 years old and up with adult assistance.

Mess Level

The mess level for this activity is medium.

Difficulty to Create 


Skills Developed

Language development, shape recognition, color recognition, hand-eye coordination, fine motor skills, imaginative play, creativity.

Toddler and Preschooler Curriculums, Books & TV Show!

Play2Learn Toddler & Preschool Programs for Curious Toddlers

There is no limit to your toddler’s energy and curiosity. That energy and curiosity although a joy can be challenging at times. Their interest in just about everything around them is what makes them great learners. One and two year olds can soak up so much just from their senses!

But as a teacher or parent that thirst for learning can be exhausting. That is why I created this toddler and preschooler program. To help you get the most out of this time with your curious toddler without having to come up with creative ways to play and interact with them.

Play2Learn for Toddlers includes 20 Units for toddlers. Each 2-week toddler unit has 20 super easy to set up and engaging activities for toddlers 18 months to 3 years.

Play2Learn Preschool which includes 20 Units for preschoolers. Each 2-week preschoolers unit has 20 unique and easy to set up and engaging activities for preschoolers 3 years to 5 years. That’s over 800 learning activities for your toddler and preschooler at your fingertips! So many ideas you and your child will never be bored again! 

These toddler and preschool lesson plans and activities will definitely keep you and your toddler and preschooler busy playing and learning!

Click here for more information: Play2Learn

Designed for toddlers 18 months and up.

Book: Exciting Sensory Bins for Curious Kids

Did you know I wrote a book of sensory bins? Click here for more information Exciting Sensory Bin for Curious Kids. Or grab your copy at Amazon

Boring afternoons are made exciting with awesome animal-based bins, like Salty Shark Bay or Yarn Farm. Pretend play bins like Birthday Cake Sensory Play or Bubble Tea Party encourage creativity and imagination. And your kids will have so much fun they won’t even know they’re getting smarter with STEAM (science, technology, engineering, art and math) activities like Sink or Float Soup, Magnetic Letter Hunt or Ice Cream Scoop and Count.

Designed for toddlers 18 months and up.

Book: Super STEAM Activity Book for Kids

Learning all about science, technology, engineering, art, and math sets kids up for scholastic success―and it can be so much fun! Watch kids enjoy building STEAM skills as they color friendly fish, help water find its way to tree roots, solve math problems with mazes, and more. 

Find out more and grab your copy here.

Designed for preschoolers 3 years old and up.

Book: Big Book of Riddles for Kids

Riddle me this: What’s an exciting way to practice critical thinking while having a blast? The Big Riddle Book for Kids, of course! From hilarious puns to tough brain teasers, kids can build problem-solving skills with hundreds of riddles that show them how to think outside the box.

  • 350 riddles for kids—Have hours of fun with riddles, puns and jokes, and math and logic puzzles that’ll get their wheels turning!
  • Level up their skills—Riddles get trickier as kids progress through the book, challenging them as they get better at solving puzzles!
  • Double-check their work—Kids can check their answers in the back of the book with a handy answer key.

Help children expand their minds while having fun with this puzzle book for kids!

Designed for kids ages 6 years old and up.

TV Show: Curious Crafting

I’m so excited to share my crafting TV show Curious Crafting which launched in July 2022 on TVOkids and TVOkids YouTube! Season 2 airs in the summer of 2023! We were also nominated in 2023 for Best Live Action Preschool Series by the Youth Media Alliance Awards of Excellence.

Set in the ultimate crafting space, Curious Crafting is a short form pre-school age series about the joy of making crafts. I lead a rotating cast of adorable little preschoolers (including my own) making magic out of common household objects.

In each episode we transform recycled items into magical crafts like a milk carton school bus, paper bag puppet or cotton pad turtle. The crafters learn and laugh their way through each activity while demonstrating what their young imaginations can create. 

Curious Crafting shares the adventure and joy of making art with takeaway lessons for creating crafts at home.

This show designed for toddlers and preschoolers 2.5 years old and up. 


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