Dry ice spookyDone by: Alyazia &Khadija

You need:

Clear plastic cylinder-shaped

vase

Hot/warm water

Food coloring

How to make it:

Pour hot water into

the cylinder

Put the dry ice

into the hot water

And watch what

happens

Dry ice is carbon dioxide (CO2) in its solid form. At temperatures above -

56.4 ͦC (-69.5 ͦF),dry ice changes directly from a solid to a gas without being a

liquid. This process is called sublimation. When dry ice is put in water it accelerates the sublimation

process, creating clouds of fog

sublimation is when a solid turns directly to a gas without the liquid stage. it is a physical change. because dry ice is Co2. and when it turns into a gas its still co2 so no chemical change. however its not a solid anymore therefore physical change