Hi Mr. Turner, I was wondering if you could review the material about changing the phases of matter that we learned in class today.
Sure Katie, I would be happy to help.
So, let's start with a solid. In a solid, the molecules are tightly pressed together and have very little energy.
When heated, the molecules in a solid start to move a little more and spread apart from the other molecules. At this point, or the melting point, the substance becomes a liquid.
This liquid substance can now be applied to heat in order to produce a gas. Once the liquid is hot enough and reaches it's boiling point, some molecules evaporate out, leaving a few left. These remaining molecules will drastically spread apart and begin to move very quickly in many directions.
Now that it is a gas, the particles are very far apart and have high energy. They can bounce off the walls of their container if it is closed or come out of the top of their container if it has no lid.
Thank you so much Mr. Turner! That really helped me understand the lesson better.
No problem Katie. I'm glad I was able to help.
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