Energy
This is the phase change that occurs when liquid water has energy transferred into it.
What is... it evaporates (vaporizes or boils)?
This is the phase change when a solid forms a liquid.
What is ... melting?
A measure of how hot or cold something is.
What is... temperature?
Molecules are always moving, even in a solid.
What is... TRUE?
This is what happens to the kinetic energy of molecules when the molecules move more slowly.
What is... the kinetic energy decreases?
This is the phase change when a gas forms a liquid.
What is ... condensation?
A pull between two molecules that is always the same for a substance.
What is... molecular attraction?
This is a substance that formed a liquid lake on Saturn's moon, Titan.
What is ... methane?
This is what happens to the kinetic energy of molecules when the molecules move faster.
What is... the kinetic energy increases?
The three phases of matter in order from greatest to least freedom of movement.
What are ... gas, liquid, solid?
To provide evidence that goes against a claim.
What is... refute?
TRUE or FALSE: Molecules that have a WEAK attraction to each other are more likely to change phase than molecules with a STRONG attraction to each other if both are heated to the same temperature.
What is... TRUE?
Butter is a solid and oil is a liquid at room temperature because of this.
What is... molecular attraction?
These are the phases (before/after) when melted chocolate turns into a piece of (delicious) chocolate.
What is... liquid, then solid?
The way molecules in a substance move around relative to each other.
What is ... freedom of movement?
TRUE or FALSE: Transferring the same amount of energy into two different substances always causes a phase change in both substances.
What is... FALSE?
This is how water molecules move when energy is removed from a liquid and a phase change occurs. (DESCRIBE BOTH freedom of movement and kinetic energy)
What is ... molecules slow down and move in place as a solid.
These are the phases (before/after) when isopropanol is dropped on a paper towel and left on a table in the classroom for 5 minutes.
What is... liquid, then gas?
The energy that an object has because it's moving is called ____________ .
What is... kinetic energy
These objects have molecules that are moving.
Select from the list:
a) solid chocolate
b) melted chocolate
c) glass of liquid water
What is ... a,b, and c OR all objects have molecules that are moving.