Matter
In this state of matter, the particles are packed closely together.
Solid
All ________ is composed of tiny particles.
matter
amount of energy required to change a substance from solid to liquid at its melting point.
Heat of fusion
In what state do molecules move extremely quickly and by bouncing off each other
Gas
The amount of _________ that the particles lose from these collisions is negligible.
energy
Energy that can be transferred between objects.
Heat
**Side note** What caused the balloon to expand?
Increased pressure
Particles are in _________, random motion.
constant
process of a solid changing directly to a gas.
sublimation
Another name for the states of matter
phases of matter
Particles _________ with each other and with the walls of any ___________ in which they are held.
collide/container
Average kinetic energy of the particles that make up a substance.
Temperature
This is the term used for the total energy inside of a solid, liquid or gas.
Thermal energy
Used to measure the amount of kinetic energy in a substance.
Thermometer
The amount of energy required for the liquid at its boiling point to become a gas.
Heat of vaporization