Phase Changes (Science)
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Today class, we will be learning about phase changes.
First, we will be leaning about ice and what phases it goes through.
I will keep the form that you have frozen me in.
Right now my particles are moving very very slow.
The ice that was on the stove turned to water. This is called melting, it is when the particles in ice start to move faster and it becomes a liquid.
When ice is heated it turns to water. As you can see in my hand this ice is not heated
I always take the form of whatever container you put me in
My particles are moving a little energetic just like me.
Water turns to water vapor when the temperature of the stove hits 100 degrees Celsius. As you can see the water that was on the stove has now turned into water vapor
When you heat water up even more it turns into water vapor.
My particles are moving extremely fast because I am now a gas.
I will always take up the whole container you put me in.
When we put water vapor into a freezer it will turn to water
This happens because water vapors atoms move very fast, but when you cool them down they move slower and create water
Once we put the water back in the freezer we will then have ice.
This is because the water particles are moving pretty fast but when you freeze it the particles will slow down significantly.
Class, this is the cycle that you go through when you are talking about phases.
Make sure remember that when you heat something atoms in that object will move faster, and when you cool something the atoms will start moving slower.