Dry Ice in Water

This is the beginning of a series of demonstrations that I do with my students using dry ice. It simply shows that dry ice is more dense than water, as is the carbon dioxide released more dense than air. It is also possible to see the cloudy bubbles formed by the gas.

Category:

Howto & Style

Tags:

• dry
• ice
• beaker
• water
• CO2
• carbon
• dioxide
• sublime
• Sully
• Russia
• bubble
• dense
• density
• H2O
• chemistry
• demo
• demonstration
• gas

[receivejesusnow]

how is dry ice formed?

[mrericsully]

@receivejesusnow Usually from the release of high pressure CO2. I don't make mine I purchase it or have it donated from a local yogurt making plant.

[receivejesusnow]

they serve cold food with dry ice in a cup in the middle of the dish in restaurants right? My sister started adding more water and some melted ice-cream and bubbles started to form! And after every bubble popped, the gas would shoot out at different directions...!

[mrericsully]

@receivejesusnow I've never heard of that being done, but it sounds like you are describing dry ice.

[Spaghetteyes]

Whats the water thats made when the dry ice evaporates???? bc i drank some with my friend at school one time...

[mrericsully]

@Spaghetteyes It is water vapor from the air (or if in a beaker like this water from the water int eh beaker frozen around it).

Having said that, if you don't know I would strongly advise against consuming it, especially if it was in a science classroom which could have all sorts of contamination.

[Spaghetteyes]

@mrericsully Yeah because it tasted like tonic water when we consumed it.

[obillyify]

@mrericsully ik it was just sarcasm.

[mrericsully]

@obillyify It can be handled safely in small quantities or for short periods of time. After that it isn't too exciting, a cold burn which can lead to frostbite.

[obillyify]

TAKE OFF THE GLOVES AND TOUCH THE ICE AND LETS SEE WAT HAPPENS