Phase Change: Macroscale vs Microscale
When a substance turns from one state of matter to another.
What is a phase change?
The more of this that you have, the more its molecules will move.
What is energy?
These are the two types of energy that mean "moving" and "not yet"
These 3 things are what every scientific argument needs.
What is a question, a claim, and evidence?
Molecules are spaced out in these three different ways according to the phase they are in.
What are in place, around each other, and away from each other.
True or false: every substance requires the same amount of energy to change phases.
What is false?
No scientific claim can be wrong as long as you have this.
What is evidence?
These are the three main phases of matter.
What are gas, liquid, and solid?
Energy can change this substance from ice, to liquid, to vapor.
What is water?
This is what happens to molecules when water freezes.
What is molecules move in place?
This word means "to go against" a piece of evidence.
What is refute?
Describe the appearance of a liquid compared to a solid at the macroscale.
What is liquid soda shaking around in a solid aluminum can?
Energy does this when liquid water turns into ice.
This is the difference between molecules in a solid versus a gas.
What are solid molecules move in place with low energy while gas molecules move far apart and have high energy.
This evidence supports the claim that the liquid methane lake on Titan took 7 years of Summer to evaporate.
What is kinetic energy finally overcoming liquid methane's molecular attraction.
Molecules that were moving in place gain enough energy to begin moving around each other.
What is melting?
True or False: Every single energy transfer results in a phase change.
What is false?
Kinetic energy plays this role in phase change.
What is helps break molecules apart despite their attraction?
This is the word that means when water clouds get cold and close to the ground.
What is fog?