We had an amazing session with Mrs Graham exploring dry ice today. Dry ice is the solid state of carbon dioxide. It is -78.5 degrees (So gloves were essential). It is an example of something that goes straight from a solid to a gas (This is called sublimation.). There is no liquid state of it.
We had a meths and dry ice solution which can freeze flowers. We put in a piece of fern which froze.
We also ate some grapes frozen in dry ice which had turned fizzy as the CO2 had seeped inside the grape.
We also each had a cup of dry ice which we put detergent into. We then put in hot water which created some amazing fountains as the solid CO2 changed to the gas form of CO2.
CO2 is heavier than air so this helped with blowing some really big bubbles.
Thank you Mrs Graham for such a great session.
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