Changes+of+State

Matter can exist, naturally, on Earth as a solid, liquid or a gas and can change from any one of these states to any other. We are very familiar with the processes of vaporization, condensation, melting and freezing, but sublimation and deposition, changes between gases and solids, are often foreign terms outside of upper level science.

The following diagram illustrates all of the possible changes between solids, liquids and gases.

We often observe these cows so we can find out what they do so we can all act like them.LOL. The terms, sublimation and deposition are unfamiliar because we do not regularly witness changes between solids and gases. In order for many types of matter hi to skip the liquid phase, a specific combination of temperature and pressure must be achieved. The temperature and pressure required for a substance to be at any state varies from substance to substance.