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Floating and SinkingWatch items sink to the bottom, and then float back up. Some even seem to dance! |
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Materialsclear plastic or glass container, water, vinegar, baking soda, food coloring, items Directions
It is fun to watch for hours and just observe how different items react. If the movement seems to be slowing down, add another teaspoon of baking soda. What is happening?The vinegar is an acid and the baking soda is a base. When you combine them, a chemical reaction produces carbon dioxide. The carbon dioxide bubbles build up on the surface of the object. When enough bubbles attach to the object, it floats to the surface and releases the gas. Then it sinks back to the bottom to start the process again. |
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Note for Parents:Every parent must use their own judgment in choosing which activities are safe for their own children. While Creative Kids at Home makes every effort to provide activity ideas that are safe and fun for children it is your responsibility to choose the activities that are safe in your own home.
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Super Science Concoctions: 50 Mysterious Mixtures for Fabulous Fun Fizz, gurgle, bubble and brew. Kids explore the world of science, all while making mixtures they concoct themselves! Order Super Science Concoctions now! |
The Science Chef Travels Around the World: Fun Food Experiments and Recipes for Kids Beginners or an experienced cooks can become an International Science Chef with experiments and recipes that are kid-tested, include metric equivalents, and require only common ingredients and kitchen. Order The Science Chef... now! |
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