STEM Children's Fun Science Experiment - Underwater Volcano Lava Lamp DIY, Hands-on Technology Small Invention

Brand OOOToyz Weight 0.1kg Color As shown Materials 2 effervescent tablets, 1 pigment, 1 plastic bottle. Suitable Age 7-14 years old    When effervescent tablets and pigment are added to water, the following principles come into play: Acid-base reaction: Effervescent tablets typically contain acidic substances (such as citric acid) and alkaline substances (such as sodium bicarbonate). When the tablets come into contact with water, the acidic and alkaline substances react, resulting in the production of carbon dioxide gas. Ascending gas: The generated carbon dioxide bubbles are lighter than the liquid, causing them to rise. Demonstrative effect of the pigment: By adding pigment, the carbon dioxide bubbles can form visible colored bubbles in the water. This simulates the eruptive effect of an underwater volcano. As the effervescent tablets react with water, the produced carbon dioxide bubbles ascend to the water surface, carrying the pigment along. This creates an