Sep 25, 2024 · Try this fun Halloween science experiment! This witches brew science experiment uses only baking soda, food coloring, vinegar and water! ... This witches brew science experiment can easily be a fun stand alone sensory activity that can very easily be adapted into a science experiment. Every time we pull out one of our fizzy sensory science activities all my kids, ages 2 to 11, jump in to play! ... Oct 10, 2021 · Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors. Learn how to make extra bubbly witches brews with our special ingredient, have fun color-mixing, and experimenting with acids and bases with this fun Halloween project. Thank you for visiting. ... Oct 2, 2020 · Optional: a tray or cookie sheet to contain the mess… because this science experiment will get messy; This witches brew science experiment is totally safe for kids. None of the ingredients are toxic, even if kids somehow end up swallowing some of it. But this activity has a defintie mess factor.. especially if you are doing it with younger kids. ... Oct 6, 2020 · Kids will love this spooky witches brew Halloween activity. They won’t even realize they’re doing a science experiment at the same time. Use this fun and easy activity as a STEM project for classroom or at home learning. Have it as an activity at a party. Or just use it for an afternoon of witch themed fun with your kids! ... For today’s science experiment to kick off the month of October, we did a simple Witches/Wizards Brew. We normally talk about the reaction of baking soda and vinegar which creates carbon dioxide when combined, but today I decided to go a bit deeper and talk about color! ... Try out the following experiment with your child that represents a chemistry demonstration using the reaction of vinegar and baking soda. Witches Brew crea... ... This witches' brew science experiment is a fun Halloween science project! Use kitchen supplies to make a bubbly potion that mysteriously inflates a balloon! ... Oct 13, 2022 · Witchesbrew fizzy Halloween STEAM experiment is a great way to bring science and Halloween together over a bubbling cauldron! This simple to set up STEAM idea is the perfect activity for home or in the classroom this Halloween. So put on your witches’ hat and test out your best cackle for this fun Fall science idea! ... Oct 6, 2020 · Get into the Halloween spirit with this Witches Brew science experiment! For science week on our tot school program, we have been doing lots of science activities. My two-year-old is obsessed and is loving every single one of these activities. This witches brew Halloween science experiment is an all-year-round favorite. ... ">

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Witches Brew Science Experiment

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Witches Brew Science Experiment for Kids

Explore chemical reactions in this fun Witches Brew Science Experiment! Kids will have a blast creating their own potions while learning how to compare and contrast the reactions of different materials.

Witches Brew Science Experiment

Ready to grab yours now? Click here for the Witches Brew Science Packet!

This witches brew science experiment can easily be a fun stand alone sensory activity that can very easily be adapted into a science experiment.

Every time we pull out one of our fizzy sensory science activities all my kids, ages 2 to 11, jump in to play!

Witches Brew Sensory Science Experiment

Supplies Needed to Make a Witches Brew:

We use affiliate links on site to help you easily find the items we recommend.

  • Baking Soda
  • Citric Acid (find it here )
  • Food Dye (or a washable liquid watercolor )
  • Plastic Cauldrons (we used these )

To turn this witches brew sensory activity into a science experiment you will also need:

  • White Vinegar

These two items are completely optional. Feel free to skip them if you just want to create potions!

Witches Brew Science Experiment for Kids

Witches Brew Science Activity Directions:

To make this witches brew you don’t really need to do much. Simply set out the items on a tray or other surface that can get messy and let kids explore!

It’s really that simple!!

One of the great things about using this witches brew as just a sensory activity is that it uses citric acid.

In the past we have done quite a bit of fizzy sensory bins using vinegar…and well vinegar has a very harsh smell. For kids that struggle with scents, a vinegar sensory bin won’t be the most fun.

Citric acid though is scentless. It’s the perfect alternative to still do those fizzy activities with sensory sensitive kids.

To turn this sensory activity into a science experiment you will have to provide kids something to test. When we did this activity we tested four different variables to see which potion would fizz up the most.

1. Baking Soda + Citric Acid + Water

2. Baking Soda + Vinegar + Water

3. Baking Soda + Citric Acid + Water with Dish Soap

4. Baking Soda + Vinegar + Water with Dish Soap

You could even take it a step further and test ratios of each to see if there is a magical ratio to the perfect potion!

Elevate Your Child’s Playtime Experience with Our Printable Membership!

Unlock a world of creativity and learning with our exclusive membership! Gain unlimited access to captivating resources like our Witches Brew Science Packet, designed to inspire imaginative play in your little ones.

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Witches Brew Halloween Science Experiment + Worksheets

Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors. Learn how to make extra…

Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors.

Learn how to make extra bubbly witches brews with our special ingredient, have fun color-mixing, and experimenting with acids and bases with this fun Halloween project.

Thank you for visiting. This post may contain affiliate links to recommended products at no extra cost to you. Read our Disclosures and Terms of Use . Don't miss out again, become a  Reader here <--it's FREE. 

Witches Brew Science Experiment

The baking soda and vinegar reaction is one of the best at-home science experiments that simply requires two basic items from the kitchen, mixing them together, and watching your kids be amazed at the results!

Witches brew Purple Spell Science Experiment for Kids

All of my kids LOVE this activity starting with my oldest child (Little Tiger, age 10) to my middle child (Little Dragon, age 8) to my youngest child (Little Puppy, age 3). We have done it for years now and it never gets old, I think it must be considered a Halloween tradition in our house now.

Kids doing Witches Brew Science Experiment

You can do this science experiment on it’s own, or INCREASE LEARNING with our EASY to use: WITCHES BREW HALLOWEEN SCIENCE PACK .

Witches Brew Science Experiment

Each Science Pack is created to:

  • Make doing the activity EASY for you!
  • Enhance LEARNING for your kids!
  • Be ready to PRINT , PREP , and Do !
  • PRINTABLE ADD-ONS
  • VIDEO EXAMPLE (When available)

Witches Brew Recipe Cards

Witches Brew Color Recipe Cards

Witches Brew Lab Worksheets

Witches Brew Printable Worksheets for Kids

Don’t see the box?  CLICK HERE   to be directed to the download.

Witches Brew Halloween Science Experiment

If you like our Witches Brew Halloween Experiment I would love for you to PIN IT! It helps you save it for later and others discover it too, which lets us bring you more AWESOME CONTENT like this .

Baking Soda and Vinegar Halloween Science Experiment for Kids

  • White Vinegar
  • Baking Soda
  • Liquid Food Coloring
  • Mini Cauldron (s) or Small Bowl(s)
  • Glitter and/or Mini Halloween Toys
  • Dish Soap for extra bubbles

Directions:

You can watch our short tutorial video or read the directions below.

Have children select which color spell they want to make. Spell Recipe Cards are included in the Printable Science Kit.

Have the children put a spoonful of Baking Soda in the cauldron.

Have children put Food Coloring into the cauldron.

Optional: Have children add 2-3 drops of Dish Soap.

Optional: Have children add glitter or small Halloween toys in the cauldron.

Baking soda and vinegar halloween science experiment

If the spell does not “bubble” up, add more vinegar, and/or stir the ingredients together.

witches brew science experiment

MORE TO ENJOY:

The Best Halloween Kids Activities Find your next favorite Halloween activity for kids to do at home or school parties including games, crafts, free printables, and more. #halloween #kidsactivities

The Best Kids Ideas for Halloween

Halloween Food Quesadillas

Halloween Quesadillas

5 Little Pumpkins Lift the Flap Book Craft: This Halloween, kids can have fun singing the 5 Little Pumpkins song with their own lift the flap pumpkin craft to practice number recognition and counting. (Free Template, Preschool, Kindergarten, October, Book Extension)

5 Little Pumpkins Craft

Sunshine Whispers

Witches Brew Science Experiment With Kids

witches brew science experiment

Would you like a great way to get your kids excited about STEM this Halloween? This Witches Brew Science Experiment is sure to be a hit!

Double double, toil, and trouble. Halloween is such a fun holiday for kids because it really ignites their imagination. One of the most quintessential Halloween characters is, of course, the witch. You can just imagine the witch in the middle of the forest, mixing up her potions and witches brew.

Only you don’t have to just imagine it. You and your kids can actually make some witches brew of your own! This is a fantastic STEM activity to do with your kids and it will totally get them excited about science.. and about Halloween!

The fun thing about this witches brew science experiment is that it is ridiculously easy to create but the effects will have everyone oooh-ing and awe-ing. 

witches brew science experiment

Sunshine Whispers participates in the Amazon Associates and Amazon Influencer Programs. As an Amazon Associate we earn from qualifying purchases. We may earn money or products from the companies mentioned on this site and in this post.  

What you will need to do the Witches Brew Science Experiment:

witches brew science experiment

  • ½ cup white vinegar for each color
  • ¼ to 1 cup baking soda
  • Food coloring, in various colors (make sure to try purple, green, blue, orange, and red!)
  • Caudron Kettles ( you can pick some up from Amazon )
  • Small cups to mix the vinegar and food coloring
  • A spoon for the baking soda
  • Optional: a tray or cookie sheet to contain the mess… because this science experiment will get messy

This witches brew science experiment is totally safe for kids. None of the ingredients are toxic, even if kids somehow end up swallowing some of it. But this activity has a defintie mess factor.. especially if you are doing it with younger kids.

Unless you want stained clothes, I would have kids put on a smock or old clothes before doing this activity.

YouTube video

Activities Printable Bundle

How to conduct this experiment:

1. In individual cups, mix food coloring with vinegar.

witches brew science experiment

2. Add baking soda to the cauldron or whatever container you have.

witches brew science experiment

3. Pour one color of vinegar over the baking soda and watch the eruption.

witches brew science experiment

4. To create a more continuous eruption, stir the baking soda with a popsicle stick or spoon as more vinegar is added.

witches brew science experiment

The Science Behind it!

When you mix baking soda with vinegar, a chemical reaction is created because baking soda is a base and vinegar is an acid. When you mix them the chemical reaction makes CO2. This gas is lighter than air, so it causes the mixture to rise. And then the liquid of the vinegar mixture traps the gas bubbles.. which causes the mixture to bubble and foam over the sides of the contain. And there you have your witches brew!

witches brew science experiment

If you want to add an educational component to this fun activity, you can ask your kids to come up with a theory about what they think will happen before you add the vinegar to the baking soda. Also, the kids can mix up how much baking soda you add to the cauldrons.. or even how much vinegar you pour into the baking soda. 

Check Out These Science Experiments Too!

  • Spooky Science Experiments for Kids
  • 20 Candy Science Experiments
  • Apple and Pumpkin Science Experiments 
  • 20 Science Experiments That Are Basically Magic
  • 20+ STEM Challenges That Use Simple Materials
  • 4 Fun Kitchen Science Experiments to Conduct This Summer
  • 15 Amazing Spring Science Experiments
  • Edible Slime Recipes 
  • Slime Recipes with 4 Ingredients of Less
  • The Best Electricity Science Experiments for Kids

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Spooky Witch’s brew science experiment {Halloween activity for kids}

There’s something special about Halloween season. Kids will love this spooky witches brew Halloween activity. They won’t even realize they’re doing a science experiment at the same time.

Use this fun and easy activity as a STEM project for classroom or at home learning. Have it as an activity at a party. Or just use it for an afternoon of witch themed fun with your kids!

witch's brew stem activity step by step photos

This post contains affiliate links. If you make a purchase after clicking one of my links I may earn a commission at no additional cost to you.

This bubbling cauldron is a perfect STEM activity for Halloween. Kids can experiment using different combinations of ingredients and different amounts to see what results they get.

This activity can get quite messy. You’ll want to put a baking pan underneath and/or do it outside, on a tile floor, or in the bathtub. Basically, somewhere you can easily wash away the mess when your kids are all done creating!

Witch potion making supplies

witchs brew ingredients

  • 1/2 cup white vinegar (for each color)
  • 1/4 to 1 cup baking soda
  • Various colors of food coloring
  • Witches cauldrons

Make sure you have extra supplies on hand. My daughter had a blast doing this project and wanted to do it again and again! We went through 2 bottles of vinegar before I finally called it a day.

How to make your bubbling witch’s cauldron

1 – Mix vinegar and food coloring in small cups (separate cup for each color)

mix vinegar and food coloring

2 – Pour baking soda into the cauldrons (or whatever container you want to use for the explosion/reaction). Start with about a teaspoon.

baking soda in witch cauldron

3 – Pour one color of vinegar over the baking soda and watch your witch potion brew!

pour vinegar into baking soda to create bubbling cauldron

4 – Stirring it a bit will create a bigger eruption.

You MUST mix these in an open container. If you mix them in a container with a lid they could explode the container.

Learning Opportunities

This activity is a great introduction to basic science. They can try lots of different things and see which works the best and creates the best witch potion.

Try different amounts of baking soda

How do you make a bigger eruption? Does more baking soda make a difference? Does how fast you poor in the vinegar make a difference? How about stirring?

witch's brew science experiment

Try other items

Let them try different substances to see if they’ll create a reaction. What happens if you replace baking soda with salt, sugar, coffee, etc.

Do not mix your vinegar with bleach or hydrogen peroxide (not that I think you’re likely to let your kids experiment with those.)

To be safe do a quick Google search for the items you want to mix with vinegar to ensure they won’t cause any safety issues.

You can also do the reverse and try pouring other liquids over the baking soda to see if they react. As before, make sure your combinations aren’t going to cause any issues.

Try making a rainbow

Try to make a rainbow potion. We achieved it a few times by dropping food coloring on the dry baking soda, 3-4 colors in different areas of the baking soda.

Then pour the vinegar over top and we actually saw the colors come out separately, it was cool to watch.

Have fun! We’d love to see your witch potions. Share a photo below or tag us on Instagram @totschoolresources

Check our Halloween page for more crafts & activities!

Witch's brew kid activity

Halloween witches brew

Thanks for sharing!

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How To Make Witches And Wizards Brew- Halloween Science Experiment For Kids

Happy October 1st! All month long we are celebrating Halloween by conducting spooky science experiments, building creepy crafts, and more!

For today’s science experiment to kick off the month of October, we did a simple Witches/Wizards Brew. We normally talk about the reaction of baking soda and vinegar which creates carbon dioxide when combined, but today I decided to go a bit deeper and talk about color!

How Do We See Color?

We used several colors that exploded in the cauldrons when the chemical reaction occurred, and so my question to my boys were, “How do we see color?”

Here’s my simple explanation to them: When light hits an object, two things happen-1) the object absorbs some of the light and 2) the object reflects the rest of it.  The reflected light goes to our eyes where the cone photoreceptors are, and this allows us to see the color of the object.

This of course prompted more questions such as “how do people who are blind see?”, “How do we see at night?”, “what about people who are colorblind?” So many great questions from this simple witches/wizards brew science experiment!

When you do this experiment with your kids, comment below with their questions! I would love to read what comes to their mind about how we see color.

Now on to our witches and wizards brew experiment…

  • Baking Soda
  • Food Coloring
  • Measuring Spoons
  • Measuring Cups

Colorful Cauldrons Halloween

1- Put each cauldron side by side in a tray.

2- Add about 1 heaping tablespoon of baking soda to each cauldron.

3- Add in a few drops of food coloring on to the baking soda.

4- Add about 1/4 cup of vinegar into each of the cauldrons and watch the “potion brew and overflow!”

*Watch our video below to see how we did this experiment and also watch for what my kids call “an EPIC” version of this baking soda and vinegar experiment!

Baking Soda and Vinegar Experiment

Wizards and Witches Brew Video

EPIC Pumpkin Eruption

GET OUR LATEST UPDATES!

Happy Toddler Playtime

Witches’ Brew Fizzy Cauldrons: Halloween STEAM Experiment

Mandisa Watts

  • Kindergartner
  • Preschooler

Witches’ brew fizzy Halloween STEAM experiment is a great way to bring science and Halloween together over a bubbling cauldron! This simple to set up STEAM idea is the perfect activity for home or in the classroom this Halloween. So put on your witches’ hat and test out your best cackle for this fun Fall science idea!

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

Witches’ Brew Fizzy Cauldrons: Halloween STEAM

Creating a witches’ brew 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.

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

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 Witches’ Brew Fizzy Cauldrons: Halloween STEAM 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.

How to Make the Witches’ Brew Fizzy Cauldrons: Halloween STEAM Experiment

  • Grab black plastic witches’ cauldrons. Find a link to purchase them in the supplies section below.

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

  • Add some baking soda to the cauldrons. The exact measurements aren’t needed. Making it the perfect activity for toddlers and preschoolers. Invite them to spoon in the baking soda – 2-4 spoon fulls are good but more or less is ok too.

witches brew science experiment

  • Add several drops of green, purple, orange or black food colouring in each cauldrons, respectively, deepening on how many you have. To make the explosion larger and foamier, add few drops of bubble bath to the cauldrons as well. Again the exact measures aren’t needed. The more bubble bath you add the larger the reaction so be prepared!

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

  • 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.

witches brew science experiment

  • Squeeze the vinegar into the cauldrons and watch it erupt with green, orange purple or black bubbling brew! My kids loved this part!!

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

How the Played

My kids adored loved this idea (as they do with all the fizzy activities we do) they honestly can’t get enough! I let me kids add all of the ingredients so they added lots and lots of bubble bath. The result was a massive foamy bubbly brew erupting on our tray. They of course got their hands in there at the end of the experiment when all the vinegar was exhausted. Because every good witch knows sometimes you have to mix those ingredients by hand!

Witches' Brew Fizzy Cauldrons: Halloween STEAM Experiment

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

witches brew science experiment

  • 50+ Halloween Activities for Kids
  • 40+ Halloween Sensory Bins
  • 20+ Halloween Sticky Walls
  • 30 Adorable Pumpkin Activities & Crafts
  • 25+ Pumpkin Painting Ideas for Kids
  • 31 Adorable Toddler Halloween Costumes
  • 19 Halloween Sticker Activities
  • 20 Cool Ghost Activities & Crafts
  • 20 Witch Crafts & Activities for Kids
  • 40+ Spider Crafts & Activities for Kids
  • 20 Haunted House Crafts for Kids
  • 24+ Skeleton Crafts & Activities for Kids
  • 20+ Bat Activities & Crafts for Kids

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.

The mess level for this activity is HIGH.

Difficulty to Create 

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.

Supplies 

(This post and list contains affiliate links for your convenience. If you make a purchase using one of these links, I may earn a commission. Please visit my  disclosure policy  for more information.)

  • Tray or sensory bin
  • Witches cauldrons
  • Baking soda
  • Food colouring
  • Bubble bath

Books, TV Show & Play Kits!

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 . 

Engage your child in hours of play with my colorful collection of over 60 sensory bin activities, recipes and play projects that aid with memory formation, language development, problem-solving skills and more. Perfect for toddlers from eighteen months to three years old and beyond, each bin makes use of materials you already have at home and helps reignite your kids’ interest in toys long forgotten.

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.

With setup instructions, details on how to guide your child through each activity, suggestions for what to talk about with your child as they play and other useful tips, Mandisa gives you all the information you need for creative sensory activities your kids are bound to love.

Designed for toddlers 18 months and up.

Rocking Paper Witch Craft for Kids

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.

How to Make Colored Spaghetti for Sensory Play

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.

witches brew science experiment

TV Show:  Curious Crafting

I’m so excited to finally share my new crafting TV show  Curious Crafting  which launched July 1 at on  TVOkids  and  TVOkids YouTube !

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. 

The Best  Sensory Play Kits  for Kids

Play is at the core of learning during the early years and it can take many forms. One of the most important of these is  sensory play  because it engages all of a child’s senses (taste, touch, smell, sight and hearing) and has a enoumous positive impact on brain development.

Our Sensory Play Kits are some fun and easy ways to keep your child engaged while at the same time using sensory play to nurture their mind!

Shop our ready made play kits  here .

How to Make Colored Spaghetti for Sensory Play

WILL YOU MAKE A WITCHES’ BREW FIZZY HALLOWEEN EXPERIMENT WITH YOUR KIDS? PIN IT FOR LATER!

witches brew science experiment

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  • Sensory Bins, Bottles and Bags

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Kid Activities with Alexa

Witches brew Sensory Bin – An Awesome halloween science experiment for toddlers

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Get into the Halloween spirit with this Witches Brew science experiment! For science week on our tot school program, we have been doing lots of science activities.

My two-year-old is obsessed and is loving every single one of these activities. This witches brew Halloween science experiment is an all-year-round favorite.

Both ingredients needed are affordable, and you can buy them in bulk so you can do this over and over again!

Halloween science experiment

Supplies needed

  • Baking Soda
  • Food Coloring
  • Small bottles
  • Toy spiders

Setting up the Halloween science experiment

witches brew science experiment

I like to create themes around our activities since it is Halloween well, the spiders, the monster eyeballs, and all things witches brew had to come out.

The cauldron was going to be the center of the activity. They needed to hold the baking soda, and the bottles were going to keep a mix of vinegar and water .

You can do just vinegar but learn from hosting this activity many times during sensory class; I knew the kids love to pour over and over again. The vinegar mixed with water will work the same, and it will last longer.

The scienCe experiment

When the vinegar and baking soda are mixed, there is a chemical reaction that occurs. It bubbles up, fizzes, and erupts like a small volcano. When adding food coloring to the water or the baking soda, the bubbles will turn that color.

witches brew science experiment

Make it fun

I set up two trays; the first tray was the baking soda inside the cauldron and the spiders. The second tray was the tray with the liquids. I had different size containers and syringes to play with. I used food coloring to make a variation of colors for our mini eruptions.

witches brew science experiment

What are they Learning

View this post on Instagram A post shared by Alexa | Kid Activities (@kidactivitieswithalexa) on Oct 1, 2020 at 4:48pm PDT

This activity, although simple to set up and using a few ingredients, offer the opportunity for a ton of learning.

They are learning cause and effect on how they have the power to pour the water/vinegar mixture and make the eruption happen.

They are practicing pouring skills. Pouring is a skill that I like to reinforce a lot. Controlling hand and arm movements to control what they are doing with their hands is just a small step that will translate into writing skills.

They are strengthening hand and finger muscles . When using the syringes ( or droppers is you don’t have syringes), they are squeezing and working all those little muscles in their hand. Perfect activity to strengthen those muscles that later on will hold a pencil.

witches brew science experiment

How to clean up

This activity is simple to clean up. Just run some soap and water over your tray and supplies and done!

This Halloween science experiment was so much fun! He had a blast, and so did I! I think I had a little bit of Hocus Pocus in me that wanted to live my child’s favorite movie, lol

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  1. Witches Brew Science Experiment With Kids

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  2. Witches Brew Science Experiment With Kids

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  3. Witches Brew Science Experiment With Kids

    witches brew science experiment

  4. Witches Brew Science Experiment With Kids

    witches brew science experiment

  5. Spooky Witch's brew science experiment {Halloween activity for kids}

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  6. Halloween Science Experiment

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COMMENTS

  1. Witches Brew Science Experiment - The Best Ideas for Kids

    Sep 25, 2024 · Try this fun Halloween science experiment! This witches brew science experiment uses only baking soda, food coloring, vinegar and water!

  2. Witches Brew Science Experiment - Parenting Chaos

    This witches brew science experiment can easily be a fun stand alone sensory activity that can very easily be adapted into a science experiment. Every time we pull out one of our fizzy sensory science activities all my kids, ages 2 to 11, jump in to play!

  3. Witches Brew Halloween Science Experiment + Worksheets

    Oct 10, 2021 · Kids will have FUN with this EASY science experiment as they make witches brews, LEARN chemical reactions, and EXPLORE colors. Learn how to make extra bubbly witches brews with our special ingredient, have fun color-mixing, and experimenting with acids and bases with this fun Halloween project. Thank you for visiting.

  4. Witches Brew Science Experiment With Kids - Sunshine Whispers

    Oct 2, 2020 · Optional: a tray or cookie sheet to contain the mess… because this science experiment will get messy; This witches brew science experiment is totally safe for kids. None of the ingredients are toxic, even if kids somehow end up swallowing some of it. But this activity has a defintie mess factor.. especially if you are doing it with younger kids.

  5. Spooky Witch's brew science experiment {Halloween activity ...

    Oct 6, 2020 · Kids will love this spooky witches brew Halloween activity. They won’t even realize they’re doing a science experiment at the same time. Use this fun and easy activity as a STEM project for classroom or at home learning. Have it as an activity at a party. Or just use it for an afternoon of witch themed fun with your kids!

  6. How To Make Witches And Wizards Brew- Halloween Science ...

    For today’s science experiment to kick off the month of October, we did a simple Witches/Wizards Brew. We normally talk about the reaction of baking soda and vinegar which creates carbon dioxide when combined, but today I decided to go a bit deeper and talk about color!

  7. Try This at Home - Witches Brew Kitchen Experiment - YouTube

    Try out the following experiment with your child that represents a chemistry demonstration using the reaction of vinegar and baking soda. Witches Brew crea...

  8. Witches’ Brew Science Experiment for Kids - The Science Kiddo

    This witches' brew science experiment is a fun Halloween science project! Use kitchen supplies to make a bubbly potion that mysteriously inflates a balloon!

  9. Witches’ Brew Fizzy Cauldrons: Halloween STEAM Experiment

    Oct 13, 2022 · Witchesbrew fizzy Halloween STEAM experiment is a great way to bring science and Halloween together over a bubbling cauldron! This simple to set up STEAM idea is the perfect activity for home or in the classroom this Halloween. So put on your witches’ hat and test out your best cackle for this fun Fall science idea!

  10. Witches brew Sensory Bin – An Awesome halloween science ...

    Oct 6, 2020 · Get into the Halloween spirit with this Witches Brew science experiment! For science week on our tot school program, we have been doing lots of science activities. My two-year-old is obsessed and is loving every single one of these activities. This witches brew Halloween science experiment is an all-year-round favorite.