Fire-ice is a frozen form of methane hydrate, a natural gas. As Wired explained, "Under sufficiently low temperatures and high pressure, methane gas and liquid water freeze together under the ...

Dry Ice, Liquid Nitrogen, Compressed Gases, Gas Tank regulators and valves are available through Procurement and Payment Services' Lab Gas Program: Lab Services monitors the quantities and locations ...

and dry ice/alcohol slurries. Cryogenic liquids undergo large volume expansion upon transition to the gas phase, for example, one volume of liquid nitrogen vaporizes to 694 volumes of nitrogen gas.

When a solid like my ice lolly is heated, it melts to become a liquid. And if you heat up a liquid even more, it’ll evaporate to become a gas, also known as boiling. These changes are reversible ...

It’s not easy to see it happen in a solid but let’s try it for a liquid and a gas. See if you can tell that heat makes molecules move! Place some ice in a large cup and add water to make ice water.

Who doesn't love ice cream? The cool, creamy treat has been a firm favourite for years. But some places are making it even cooler, and it's all thanks to liquid nitrogen. Liquid nitrogen is a ...