pure substance
what is a mixture?
a physical blend of pure substances
what is kinetic energy?
what is potential energy?
motion
stored
what are the 3 phases of matter?
solid, liquid, and gas
what is melting?
a solid to a liquid
what is a pure substance?
types of matter made up of only one type of particle.
what is thermal energy?
energy due to the motion of particles
what is a solid?
when the molecules are packed in very close together with very little to no movement.
what is evaporation?
when it goes from a liquid to a gas
what is homogeneous?
when the substance is the same throughout
what is endothermic?
absorbs energy
what is a liquid?
when the molecules are packed close together with movement packing over each other.
what is freezing?
a liquid to a solid
what is exothermic?
releases energy + heat
what is a gas?
when the molecules are very far apart from each other having a lot of movement bouncing off of the walls
what is condensation?
a gas to a liquid
when does diffusion occur?
in gasses and liquids