First, you fill a water bottle about 2/3 with oil.
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Then, you fill the rest with a little water.
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Once the water and oil separate, you add your choice of food coloring.
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Once the water is fully colored, you then add pieces of alka-seltzer tablets. We first added 1/4 of a piece at a time and the bubbles rose very slowly. Then we learned if you add them quickly, the bubbles come super fast and it's very exciting. :-)
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Of course, sweet Brooklyn did one, too.
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Yay for a successful experiment!
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Thank you, Ms. Alex and Pinterest, for a fun family project!
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