Learn about chemistry and design out-of-this-world bath bombs! Mix together citric acid, baking soda, cornstarch, and food coloring to make your bath bomb base before pressing into molds. Smush and sprinkle the colors on top of each other to create planetary layers before dropping them in the bath and watching them fizz!

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KiwiCo

Planet Bath Bombs

Great fun! Turned out great. Did this with my three and five year old 

So fun and awesome that it gives the measurements for the recipe to make them over and over again. My daughter has started making these as teacher and birthday gifts ?

I did this project with my 9 year old and he loved every step! We were worried that the consistency wasn't right but once the bath bombs dried, they held together perfectly. 

I liked making them, but I thought the color would stay longer and that it would be more sudsy when I bathed with it.

My son loved making these and then using them at bath time. He had fun doing the store by step process and doing different color combos. He could not believe how fizzy they were when he got to used the finished product. He made a total of 5 bath bombs. This was such a good gift. 

We love this box! the kids had so much fun with it!

I would love it if you included the measurements for the ingredients so that we could make them again using the equipment that was provided. 

Had lots of messy fun with this crate! My son loved created the bath bombs and my youngest loved watching it fizzle up. It was fun for all of us. At first we all had a hard time getting the right consistency for the bath bomb but eventually got it. I always love how they provide everything you need! 

My daughter had fun with these but they were challenging to put together the different layers. I also think I needed to add more water because all but one fell apart when they dried ?

Mix together citric acid, baking soda, cornstarch, and food coloring to make a variety of colorful bath bomb powders. Use a set of molds to shape the powders into multi-layered bath bombs inspired by the layers of the Earth. Then drop your bath bombs into the water to see a frothy, fizzy chemical reaction!<br><br>
One project can make 3-6 unique bath bombs.

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Planet Bath Bombs

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