Molecules and Matter Crossword Puzzle

QUESTIONS LIST: condensation : the changing from vapor state to a liquid state, when a substance is cooled, density : the mass per unit volume of an object, evaporation : the changing from liquid to a vapor state, when a substance is heated, freezing : the changing from a liquid state to a solid state, when a substance is cooled, temperature : gas _ is directly proportional to the average kinetic energy of its molecules, internal : the energy stored by the atoms and molecules that make up a system. it is the sum of the total kinetic and potential energies of the particles in the system, latent : the energy required for a substance to change state is known as _ heat, melting : the changing from solid state to liquid state, when a substance is heated, pascals : the unit of pressure, joules : the unit of energy, pressure : the force acting perpendicular to a surface, per unit area, sublimation : the direct changing of a substance from a solid state to a vapour state, without passing through the liquid phase, capacity : specific heat _ - the amount of energy needed to increase the temperature of one kilogram of a given substance by one degree celsius, fusion : specific latent heat of _ - the amount of energy needed to change the state of one kilogram of substance from solid state to liquid state without a change in temperature.