🔻Materials we will need:
- Plastic cup,
- Soda,
- 9 % vinegar,
- Food coloring or dye,
- Liquid soap,
- Sand.
🔻 Create a volcano shape out of sand outside or on the beach. You can use figurines of animals, tree branches to imitate flora and fauna, and make a river at the bottom and fill it with water.
Put a plastic cup in the crater. Add 2 tablespoons of baking soda, red dye, and a bit of liquid soap. Mix it up.
Your volcano is ready. Now you can pour the vinegar into its crater in portions and watch it eruption.
🔻Explanation:
In this experiment, soda reacts with acid when water is added. The reaction produces carbon dioxide CO2 and water H2O. The carbon dioxide rushes to the top, but is trapped in soap bubbles. Therefore, dense soapy foam bursts out of the crater and begins to flow down the slope of the volcano.
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21 июл 2022
