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This is a very easy to do experiement. All you need to add is water and then stir, place powder and rock into base given and just wait and watch as the crystals begin to form. This does take a short while for the cystals to start forming, but it is very interesting in the different shapes that are created. Very educational.
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Kids loved it .
Verified purchase: Yes | Condition: New
very educational
Verified purchase: Yes | Condition: New
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