Core Concepts
State of matter that holds its shape the best
Solid
Building block for matter
Atom
What are the three states of matter?
Solid, liquid, gas
Changes in states occur due to changes in ________
Temperature
State change from liquid into a gas
Evaporation, vaporization
State of matter where there is the least movement of particles
Solid
A substance made out of only one type of atom
Element
Matter with a composition that is always the same
Substance
Change of state from solid to liquid
Melting
As temperature decreases, substances _________ (expand or contract)
Expand
State of matter with the most movement of particles
Gas
Energy that an object has due to motion
Kinetic Energy
Group of chemical symbols and numbers representing elements and number of elements within compounds and reactions
Chemical formula
Change of state from liquid to solid
Freezing
As temperature increases, substances _______ (expand or contract)
Contact
State of matter with a medium amount of particle movement (not the highest or lowest)
Liquid
Energy that is due to position, it is the stored form of energy
Potential Energy
Substance that is made up of two or more different elements
Compound
Change of state from gas to liquid
Condensation
Heat moves from areas of _____ temperature to areas of _________ temperature
High, low
This state of matter can be compressed
Gas
Measure of the average kinetic energy of particles in a specific substance
This table holds information about all of the elements in existence
Periodic table of elements
Change from solid into gas
Sublimation
Measure of force per unit applied to an object's surface
Pressure