Hey mom today in science class we learned about the states of matter. We learned that there are three states of matter solid, liquid, and gas. Its really cool because those states of matter use kinetic energy to go through phase changes.
Wow that is cool! What are phase changes?
Phase changes are the change from one state of matter to another. There are six kinds of phase changes they are vaporization, melting, freezing, sublimation, deposition, and condensation.
Wow that is interesting! let's try to find some of those examples around the house.
Wow that pot seems to be boiling. Boiling is water that is heated up to its boiling point and the heat allows the particles to gain energy by moving rapidly and become a gas. Boiling is an example for vaporization which is one of the six phase changes. Vaporization is when a liquid becomes a gas. So for this example water was the liquid, the steam that was evaporating was the gas, and the energy was the heat.
The outside of that glass seems to be sweating that reminds me of something my teacher talked about today. The sweat on the outside of that glass is condensation. Condensation is the change from a gas to a liquid. Condensation is also apart of the six phase changes. There is also a ice cube in the glass but it seems to be disappearing into the water. This is called melting it is also apart of the six phase changes. Melting is when a solid turns into a liquid.
Also mom when we put the ice trey into the freezer with only water in it and the water turns into ice cubes it is called freezing. Freezing is when a liquid turns into a solid. The liquid in this case is the water and the solid is the ice cubes and the kinetic energy is the freezer. Also if you notice in the freezer their is ice all around the sides. This is called deposition. Deposition is when a gas is turned into a solid.
So now that we have discussed five of the six phase changes we should talk about the sixth. The sixth phase change is sublimation. Sublimation is when a solid turns into a gas . The most common example for sublimation is dry ice. Today our teacher showed us the dry ice experiment. It was so cool!
Wow that was an awesome day in science! I'm glad to see you have been learning so much!