Learn about the science of acid-Base reactions and buoyancy while splashing around in the bath, with this Diving Submarine!
When you fill your Submarine with Fuel, and place it in the water you create a chemical reaction. The fuel is a mixture of bicarbonate of soda (a Base, NaHCO3) and citric acid (an Acid, C6H8O7), which in the presence of water reacts to form sodium citrate (Na3C6H5O7), water and bubbles of carbon dioxide gas (CO2). The carbon dioxide bubbles are lighter than water and so cause the submarine to float!
- Dimensions of Sub: Approx 9cm
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