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My kids LOVED this fun science-based Halloween activity that we came up with! It’s very simple, too – all you need is a water bottle, balloon, Sharpie pen, vinegar, and baking soda!
Draw a ghost face on the balloon, and fill it with about 1 Tablespoon of baking soda. Fill the water bottle with about half a cup of vinegar. Attach the balloon to the top of the water bottle, lift the balloon so that the baking soda falls into the water bottle, and watch the magic happen!
The two household chemicals create carbon dioxide when mixed, and this inflates the balloon! This balloon experiment is one that we’ve done before, and it never ceases to amaze my kids!
Here’s a second one, done with a pink balloon for three-year-old Lily. The pink-ness makes it a particularly friendly ghost, I think. :)
Emma used our small camera to capture the entire thing on video:
Which we’ve uploaded to Youtube! Enjoy!
Do you have a favorite science experiment? Or a favorite Halloween activity or craft?
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Ha! This is a fun Halloween experiment!
Visit Kelly at Little Wonders’ Days … Baked Pears with Cobbler Topping, Cooking with Kids
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maryanne Reply:
October 19th, 2012 at 8:16 am
I was so excited when I thought of it! :)
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Anonymous Reply:
November 25th, 2012 at 11:26 am
Hey, this is coolllll!!!!!!
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What a fun project for the kids!
Visit Jen … a proper english experience in suffolk
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You know for all of the baking soda experiments we’ve done, we’ve never done this one. I should remedy that.
Visit Ticia … Pouring God’s Word into your Kids: Children’s Bible Studies
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What a great experiment! I think we’ll try this next week.
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maryanne Reply:
October 19th, 2012 at 10:32 am
My kids loved it!
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Ahahahahahha that is a great variation!
Visit Katherine … Dye Dye Dye
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That looks so fun!
Visit Jenny … Links I Like: Pumpkins
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Coolest ghost experiment ever! I love that I already have all of the supplies so can set it up at a moment’s notice. :)
Visit Megan @ CoffeeCupsandCrayons … Spoon Feelings Activity for Kids
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We’ve done this experiment, but not in a long time, and *certainly* not as a ghost. My kids are going to love this!
Visit Two Chicks and a Hen … Happy October!
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How fun! Great video! :)
Visit Elisa | blissfulE … drum hair
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This is very cute!
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My girls will love this – will definitely be trying it soon.
Visit Mud Hut Mama … Preparing for a Malawian Wedding
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Wow, it happens really fast! Cool!
Visit Ann … It’s a Bird! It’s a Plane! Deer and Shark Edition
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That looks fun and super easy to do. My oldest is 7 years old and loves doing science experiments so I know she’d enjoy this one. :)
Visit Susie B. Homemaker … Wardrobe change: The many outfits of a toddler
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I love the pink friendly ghost. :)
Visit Allison … The Sunday Showcase – Fall Crafts
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This is so awesome!!!
I have to pin this for next Halloween!! :)
Visit sherri … I Need My Monster Rock!!!
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maryanne Reply:
October 22nd, 2012 at 9:02 am
It’s super easy and fun!
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Adding the ghost idea to the self-inflating balloons is a great idea! Tell your daughter that my favorite is also the pink ghost. ;)
Visit Carolyn @ Pleasantest Thing … Jogging Stroller Bingo
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Awesome idea! It’s been a year since we did this experiment (non-ghosty), so it’ll be fun to see J’s excitement for the experiment again and have something new, Halloween related (that’s not messy or sugary). I might steal the idea for a Halloween post. I’ll link back up to you, for sure.
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maryanne Reply:
October 24th, 2012 at 8:37 am
Go for it – glad you liked the idea!
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That is awesome! I am going to have to do this with my 3.5 year old!
Visit Kendall … Pumpkin Pie Fractions
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[...] This is a perfect example of something fun to do with your kids this week. Scientific ghost experiment: [...]
Oh, how fun!! We should have done this with our ghost crafts the other day! Thank you for sharing at Sharing Saturday!!
Visit Carrie … A Ghostly Day
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[...] This is a perfect example of something fun to do with your kids this week. Scientific ghost experiment: [...]
Love it – Anna did a very similar experiment in her Mad Science class lately.
Visit Natalie … The Children’s Bookshelf–Halloween Books
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Clever idea mama! I’m featuring it this week on Tuesday Tots so if you collect featured buttons, you’re welcome to grab one of mine. Thanks so much for linking it up :D
Visit Debs … The Mom Connection. To Ration Candy or Not?
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maryanne Reply:
October 29th, 2012 at 12:40 pm
Thank you, Debs! I’ve added your feature button to my “featured on” page :)
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These are amazing! :-) and your balloon blowing up worked much better than ours!
Visit Emma @sciencesparks … Halloween Gingerbread House
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[...] used vinegar and baking soda to blow up a balloon by following the instructions at Mama Smiles. Her balloons were even cooler because she made them into ghosts, but my girls thoroughly enjoyed [...]