This is probably my 4 year olds favourite home experiment to date. It is a great activity for young children as it is quite simple, mess free and fun to watch.



1/2 Cup White Viniger

1 tbsp Bicarbonate of Soda

A Few Drops of Food Colouring

1 White Balloon

1 Black Marker Pen

A Tray

1 Empty and Clean Water Bottle

A Funnel


Pour the white vinegar and food colouring into the water bottle.

Draw a ghost face onto the balloon.


Using the funnel pour the bicarbonate of Soda into the balloon.

Carefully place the balloon on top of the bottle making sure you don’t empty any of the bicarbonate of Soda into it.

Place the bottle onto a tray.


Get your child to lift up the balloon to mix the powder and liquid together.

Sit and watch as the ghost balloon blow up.


Watch the video below to see how it works.

Science behind the experiment :

Mixing bicarbonate of soda with vinegar causes a reaction which then produces carbon dioxide gas. The gas created can not escape from the bottle because of the balloon. As more gas is made, the bigger the balloon grows.

24 thoughts on “Blowing Up Ghosts

  1. What a fab idea, I can’t wait for my boys to get a bit bigger so we can get all science-y.

    Emily – Babiesandbeauty #marvmondays

    1. Aww thank you. What a lovely comment. We love experimenting with different things especially in the autumn as there is so much we can play with this time of year.

  2. This is great experiment! Something we will def try at our home too:) Home science – sounds like a lot of fun!! Thanks for sharing!;)

  3. THAT IS AMAZING! Such fun. I’m going to a halloween party. I so want to do that for the kiddies that are going there! I think that my son is probably a little too young to enjoy that right now. One for pinning! Thanks for linking up to #FamilyFun

  4. Thats so cool! I’ve not tried that one before, so definitely one to add to the list for those rainy days that we’ll have so many of soon πŸ™‚ Emily #TwinklyTuesday

  5. My kids and I did this last year and it was a blast! The squeals of excitement as the balloons inflated were worth the price of admission!

  6. This is so cool! I’ve never seen or heard of this before. We will definitely be giving this a go when mybtwo are a bit older πŸ™‚ #KCACOLS

  7. What a fantastic activity to do at home with your kids. I would have to give that ago with my girls! Thanks so much for sharing this at #KCACOLS. It is nice to have you back. Just one thing. Please do not forget to comment the post before yours. Apologies if you have done it and perhaps your comment has not been approved but I can’t see it there yet. Thanks in advance lovely, πŸ™‚

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