First mix in a Tupperware bin, silver and black glitter, along with some baking soda. Then pour in some water so it gets a nice gooey consistency, but watch how much water you put in-because you dont want it to get too thin. Although you could always add more baking soda if you needed to. Then mix in some black watercolor paint. We used this kind of pain because it is washable.
Once you get the mixture to where it will hold together using the water, baking soda, black watercolor paint, and black and silver glitter-form them into little round balls. This part is fun for the kids. They like to feel it on their hands to feel the consistency.
Then you take some vinegar-white vinegar is what we used-and you don't need too much either-and pour it over the "moon rocks." The baking soda and the vinegar will react to each other and will make the moon rocks "bubble up" or "erupt." Really cool and fun!
The kids loved to put together this science project!
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