Solids, Liquids & Gases
Particle Level
Phase Changes
Vocabulary
Energy
100
Has a definite volume but not a definate shape
What is a liquid?
100
What are all molecules always in a constant state of?
Motion
100
Phase change of a solid turning into a liquid
What is melting?
100
The temperature at which a liquid becomes a gas?
What is boiling point?
100
When sublimation happens, this has been added to the system.
What is energy/heat?
200
Has a definite shape and volume
What is a solid?
200
When heat is added to a liquid it becomes what?
What is a gas?
200
Phase change of a liquid turning into a gas.
What is evaporation?
200
The temperature at which a solid becomes a liquid or vice versa.
What is melting / freezing point?
200
As a solid turns to a liquid this happens to the thermal energy.
What is increases?
300
This state of matter has an indefinite shape and volume.
What is a gas?
300
Describe the movement of the particles in each state of matter.
Solid: vibrating, but with a fixed location Liquid: moving faster, able to move past each other Gas: bouncing around very quickly
300
Change from a liquid to a solid
What is freezing?
300
The smallest building blocks of matter
What is atom (or particle)?
300
When you take energy away from a liquid, this happens.
What is freezing?
400
What does it mean to have a definite shape vs. an indefinite shape.
Definite shape: shape is fixed, will not change on its own. Indefinite shape: chape changes to take the shape of the container.
400
What must happen for matter to change states?
It must gain/lose energy or increase/decrease temp. BONUS 100: increasing/decreasing pressure
400
Phase change of a gas turning into a liquid
What is condensation?
400
The three main parts of an atom.
What is proton, electron, neutron?
400
What happens to particles when an object's kinetic energy increases?
What is the particles move faster?
500
The state of matter that is an ionized gas.
What is plasma?
500
Draw the particle arrangements for a solid, liquid, and gas.
Solid: dense, touching Liquid: close together, sliding past each other Gas: spread far apart.
500
Phase change of a solid turning into a gas
What is sublimation?
500
When more than one atom is held together by chemical bonds.
What is a molecule?
500
The average kinetic energy of the individual particles in a substance.
What is temperature?
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