Fizzy Pumpkins

This season I am all about Halloween Activities and Halloween Food. The food must wait while I share a fun twist on a traditional science experiment! Young scientists will love this hands-on, pumpkin-themed experiment which combines creativity and chemistry. Learn how to use vinegar to turn regular baking soda into fun Fizzy Pumpkins!

If you enjoy this activity, check out our Black Glue and Salt Pumpkin and our Coffee Filter Pumpkins.

*Please supervise children during this entire activity.

🎃Why Making Fizzy Pumpkins Is Fun

• The bubbling reaction when the vinegar combines with the baking soda
• Kids will learn science concepts in a fun and hands on way
• It's a Halloween themed sensory play!

👻Supply Notes

• Vinegar - Distilled white.
• Baking soda - Make sure to use baking soda, not baking powder.
• Food coloring - Orange or red and yellow to make orange
• Pumpkin mold - I found mine at the dollar store, but I have included a link to Amazon as well.
• Tray - Great for containing any mess that occurs with this fizzy pumpkin science experiment.

📋How to Make Fizzy Pumpkins

STEP 1: In a small bowl, mix the following ingredients into a paste: ½ cup baking soda and 3 tablespoons of water.

STEP 2: Squeeze a few drops of food coloring into the paste mixture.

STEP 3: Stir well with a spoon to get the color spread evenly. The consistency of this paste will be more on the crumbly side.

STEP 4: Very important: only make one pumpkin at a time. Put enough of the mixture into one pumpkin crevice and push it down with your fingers, careful to get it into every nook and cranny, particularly the stem.

STEP 5: Carefully turn the mold over to remove the pumpkin, placing it in a plastic cup.

STEP 6: Fill a small cup with vinegar and pour that into the pumpkin cup and watch the reaction.

✂️Expert Tips

Tip 1: If you fill up all of the holes in the mold, they will all come out when you remove one. That is why it is best to make one at a time.

Tip 2: Removing the pumpkin from the mold (particulalry the stem) can be tricky, so adults should do this step.

Tip 3: Please have children wash their hands after the experiment.

🤷🏻‍♀️Activity FAQs

🦇Related Posts

🔖 Halloween Bookmarks

These Printable Halloween bookmarks are perfect to keep your place while you are relaxing with a good book. Never lose your place and get into the Halloween spirit! These printable bookmarks are perfect for teachers and classroom use. Print as many as you want.

🌟If you try this craft, leave a star rating below or a review in the comment section. Be sure to sign up for my newsletter to get my latest crafts!

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Fizzy Pumpkins

Kids will be amazed and delighted as miniature pumpkins fizz and bubble.

Prep Time10 minutes mins

Active Time2 minutes mins

Total Time12 minutes mins

Author: Vicky

Materials

• Baking soda
• Water
• Orange food coloring
• White vinegar
• Pumpkin mold
• Spoon
• Small bowl
• Tray
• Plastic cups clear

Instructions

• In a small bowl, mix the following ingredients into a paste: ½ cup baking soda and 3 tablespoons of water.
• Squeeze a few drops of food coloring into the paste mixture.
• Stir well with a spoon to get the color spread evenly. The consistency of this paste will be more on the crumbly side.
• Put enough of the mixture into one pumpkin crevice and push it down with your fingers, careful to get it into every nook and cranny, particularly the stem.
• Carefully turn the mold over to remove the pumpkin, placing it in a plastic cup.
• Fill a small cup with vinegar and pour that into the pumpkin cup and watch the reaction.

Video

Notes

• Please supervise children during this entire activity.
• If you fill up all of the holes in the mold, they will all come out when you remove one. That is why it is best to make one at a time.
• Removing the pumpkin from the mold (particulalry the stem) can be tricky, so adults should do this step.
• Please have children wash their hands after the experiment.