Fizzy Pumpkin Science Experiment is a fun and easy fizzy science experiment for kids! This simple to set up STEM activity is the perfect activity for home or in the classroom this Halloween. Your kids will get a huge kick out of this one!

Fizzy Pumpkin Science Fun
Creating a fizzy pumpkin experiment at home is one of those super easy kitchen science experiments, every child should experience especially during Halloween. When I set this up for my kids, they absolute loved it. Baking soda fizzy experiments are always a massive hit on our house. The colours, the smells, the sounds and the bubbles! This fun and easy chemical reaction was equal parts science and sensory!
Science for All Ages
One of the great things about this activity is that its safe for toddlers and preschoolers but exciting enough to entertain older grade school age kids as well! The main ingredients for this chemical reaction are baking soda and vinegar, common kitchen household items that is easily available at the grocery store.

Easy Fizzy Baking Soda and Vinegar Experiments
Do you want to try more experiments with baking soda. You can also try our other fizzy experiments like our
- Awesome Fizzy Ice Cream Shop Sensory Bin
- Fizzy Sun Sensory Bin: Summer STEAM
- Super Fun Fizzy Paint Easter Bunny Craft
- Fizzy Shapes Sensory Bin
- Love Potions Sensory Bin: Valentine’s Day STEM
- Easy Baking Soda and Vinegar Experiment for Kids
- Lemon Volcanoes
- Fizzy Apple Volcanoes
Science Behind the Fizzy Pumpkin Experiment
What happens when you combine baking soda with vinegar? Fizz! But why does this happen with two seemingly common ingredients. Baking soda is a base and vinegar is an acid. When an acid and a base mix they produce a gas called carbon dioxide.
Supplies
- Tray or sensory bin
- Carving knife (adult should do the pumpkin carving)
- Baking pumpkin
- Baking soda
- Vinegar
- Green food colouring
- Dish soap
How to Make the Fizzy Pumpkin Experiment
- Use a knife to cut the top off your mini pumpkin. Use a knife to also carve a face in your pumpkin including a mouth, eyes and nose.

- Add several spoons full of baking soda the pumpkin. There is no need to fill it up or measure an exact amount. 4-5 spoons of baking soda is good! Save some of the baking soda to add later.

- Add several drops of green food colouring and a few drops fo dish soap to the pumpkin as well.

- Fill a squeeze bottle with vinegar. You can mix in some water in order to make your vinegar go further. Mix 1/3 water with 2/3 vinegar.

- Squeeze the vinegar into the pumpkin and watch it erupt with green fizzy. It will looks like the pumpkin is vomiting through the mouth. My kids loved this part!!



- Keep adding vinegar until the reaction stops.
- Add additional baking soda and green food colouring until the reaction is exhausted.


Looking for more Halloween Activities? Check out these fun ideas:








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Age Suitability
This activity is good for toddlers, pre-k, kindergarten aged children 2 years old and up. My kids are 4.5, 4.5 and 8 years old.
Mess Level
The mess level for this activity is HIGH.
Difficulty to Create
Easy.
Skills Developed
Sensory play, language development, number recognition, color recognition, hand-eye coordination, fine motor skills, imaginative play, creativity.
The benefits of sensory play:
- encourages the development of fine and gross motor skills;
- supports language development;
- can calm and relieve anxiety;
- promotes and strengthens memory; and
- helps develop the nerve connections the brain requires for higher learning.
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
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 tha. t 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 aired in August 2023! My show was also nominated in 2023 for Best Live Action Preschool Series by the Youth Media Alliance Awards of Excellence.
Curious Crafting Season 1 is also now airing in Australia on ABC! Watch it here!
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.

