Purpose of this activity is to demonstrate what happens when a volcano erupts.
Material
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· Bottle (Plastic soda bottle)
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· Vinegar
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· Water
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· Baking soda
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· Tissue paper
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· Thread
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· Soil
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· Large pan
Procedure: This is a science experiment that should take place out side on a nice day or in a science lab where the material can be easily cleaned.
Fill a bottle halfway with vinegar. Place the bottle in the middle of the large pan. Push soil up around the bottle until just the top neck is showing. You can use different height bottles to form various volcano types. Place a tablespoon of baking soda into the center of a piece of tissue paper. Roll the paper around the baking soda to form a packet that is narrow enough to slide the neck of the bottle. Tie both ends with thread. Hang the basket inside the bottle by the thread but do not let it touch the vinegar. When you are ready, drop the packet into the vinegar, stand back and observe.
What just happened? When the vinegar reacts with the baking soda it forms bubbles and gas and pushes the “lava”out of the “volcano”. Have students record their observation in their science journal.
