Solids, Liquids & Gases
When a liquid is cooled it becomes _______
What is a solid?
Phase change from a solid to a liquid
What is melting?
The sum of potential and kinetic energy
What is thermal energy?
When heat is added to a liquid it becomes _______
What is a gas?
A solid becoming a gas
What is sublimation?
The measure of average kinetic energy in a substance
What is temperature?
As a solid turns to a liquid, thermal energy _________
What is increases?
The state in which molecules move extremely quickly and by bouncing off each other
What is a gas?
When a gas is cooled it becomes _______
What is a liquid?
Change from a liquid to a solid
What is freezing?
What all molecules are always in a constant state of
What is motion?
This must happen for matter to change states
What is gaining or losing energy?
Phase change from a gas to a liquid
What is condensation?
A statement describing qualities and characteristics without using numbers
What is a qualitative observation?
What happens to particles when an object's kinetic energy increases
What is the particles move faster?
A law stating if pressure in a gas increases, volume decreases.
What is Boyle's law?
A law stating that the volume of a gas is proportional to its temperature.
What is Charles' law?