Melting is a process that causes a substance to change from a ________ to ___________.
What is solid to liquid
100
When gas molecules transfer their energy to something cooler, they slow down and their attractions cause them to bond to become
What is a liquid
100
Energy can be added or removed from a substance through a process called ___________
What is conduction
100
Has a definite volume but not a definite shape
What is liquid
100
When a liquid is cooled it becomes what?
What is solid
200
This occurs when the molecules of a solid speed up enough that the motion overcomes the attractions so that the molecules can move past each other as a liquid.
What is Melting
200
This is the process in which molecules of a gas slow down, come together, and form a liquid.
What is condensation
200
Removing energy (cooling) atoms and molecules decreases their motion, resulting in a ________ in temperature.
What is decrease
200
Has a definite shape and volume
What is solid
200
Change from a liquid to a solid
What is Freezing
300
What is being transferred in order to melt a solid into a liquid?
What is heat or energy
300
Making water vapor colder (increases or decreases) the rate of condensation.
What is increases
300
During conduction the slower-moving molecules speed up and the faster-moving molecules ________ _________
What is slow down
300
In what state do molecules move extremely quickly and by bouncing off each other
What is gas
300
Phase change of a gas turning into a liquid
What is condensation
400
Freezing is the process that causes a substance to change from a ________ to ___________
What is liquid to solid
400
This occurs when molecules in a liquid gain enough energy that they overcome attractions from other molecules and break away to become a gas.
What is Evaporation
400
This is a measure of the average kinetic energy of the atoms or molecules of a substance.
What is Temperature
400
In what state are molecules very close, vibrating in a fixed position?
What is a solid
400
When heat is added to a liquid and becomes a gas.
What is evaporation
500
This occurs when the molecules of a liquid slow down enough that their attractions cause them to arrange themselves into fixed positions as a solid.
What is Freezing
500
Adding what increases the rate of evaporation?
What is heat or energy.
500
Heat is the transfer of energy from a substance at a _________ temperature to a _______________ temperature.