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.