For makes this experiment, we need : - gloves
- basin with a large rim
- strip of fabric
- graduated cylinder
- weighing scale
- small dish
- solid carbon dioxyde
- dish soap
BUT BE CAREFULL !!!!!!!!! : Never touch dry ice with barehands or skin because dry ice temperature is cold at -78.5 °C, so handledry ice with care and wear protective cloth like an oven mitt.
Protocol : - We mix 50ml ofwater, 10g of sugar, 40ml of dish soap, 20ml of glycerin and again 80ml of water.
- After, we let's make a giant dry ice bubble.
- Now, we fill 2/3 of the basin with water.
- Next, we take a piece of dry ice and put it gently in the water.
- Stretch dish soap and rub it along the edge.
- Then wait for the bubble to grow and burst.
Changes of states :
Conclusion : - The dry ice is a solid carbon dioxyde.
- Thanks to anhydrous copper sulfate, we know the cloud is composed of water.
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