This is an oldie but a goodie, and definitely worth a look. Building a baking soda volcano in your kitchen is a fun science project that has the added "wow" factor of an explosion (without really having anything explode). It's great for a rainy day, a summer day, or any day you're trying to show your kids just how cool science can be. Here's how it's done:
What you need:
- 6 cups flour
- 2 cups salt
- 4 tbsp. veggie oil
- 2 cups warm water
- Red food coloring
- 5 drops dishwashing detergent
- 2 tbsp. baking soda
- 1 empty soda bottle (2-liter or 20-ounce, depending upon how big you want your volcano)
Fun fact: Baking soda and vinegar mixed together produces carbon dioxide gas, which bubbles up (with the help of detergent) and forces the "lava" to erupt.
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