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Watermelon Volcano

By October 31, 2015April 26th, 2021No Comments

Watermelon volcano

Get 25% off the first month of your new craft box subscription with code BLOG25! Green Kid Crafts delights tens of thousands of kids across North America each month with fun and eco-friendly craft and STEM activities delivered right to their door through our company’s craft subscription box program.

Kids are sent a monthly Discovery Box, which is packed with between 5-8 activity kits designed to foster a child’s creativity and confidence. Each month brings a new theme; past themes have included Mad Scientist, Nocturnal Animals, Around the World, and Outer Space. Our team of kid testers help design each Discovery Box as well as the fun activities and projects for our blog like this one! We even have a fantastic volcano craft box and other crafting kits for kids.

An erupting, oozing watermelon volcano! Using the classic ingredients for a home science project volcano, you can have a fun and unique science activity for kids in no time. You can also experiment and try a pumpkin during the Fall.

Watermelon volcano


  • Carved watermelon or pumpkin (Be creative here and get adult help)
  • Baking Soda
  • Vinegar
  • Small dish/container
  • Food coloring


Step 1: Get creative and carve a face/shape into the watermelon after coring out the center. We cut off the bottom of the melon and added a top cutout for access in pouring the vinegar onto the baking soda. (A pumpkin can be used here as well)

Watermelon volcano

Step 2: Add 3-4 Tablespoons of baking soda to a small dish/container.

Step 3: Add 7-8 drops of food coloring to the baking soda in the dish.

Step 4: Place the dish inside the watermelon.

Watermelon volcano

Step 5: Remove the top piece and pour in the vinegar.

Watermelon volcano

Step 6: Watch the vinegar react to the baking soda and food coloring!!

If you’re not already a Green Kid Crafts subscriber, don’t wait another day to join!

From $16.95 / month! Monthly boxes come with 4-8 award winning Creativity and STEM Science Kits (science, technology, engineering, and math) designed by experts around national standards to build confidence, flex creativity, and make kids smarter. All materials and instructions included, along with some fun extras! Each Discovery Box is created around an exciting new theme each month (think Outer Space, Nocturnal Animals, Backyard Science, Ocean, and Mad Scientist). You can cancel anytime. Join Green Kid now and save 25% off your first month with code BLOG25.

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