Across
- 1. The energy stored in the position or arrangement of particles in a substance, influencing changes in states of matter.
- 4. A state of matter consisting of charged particles, often found in stars and lightning.
- 7. The process of changing from a liquid to a gas state at the surface of a liquid, influenced by temperature and surface area.
- 9. The process of changing directly from a solid to a gas state without passing through the liquid state.
- 11. The energy of motion possessed by particles in a substance, increasing with temperature.
- 14. The temperature and pressure at which the distinction between liquid and gas phases of a substance disappears.
- 15. A state of matter with definite shape and volume, where particles are tightly packed and vibrate in fixed positions.
- 16. The process of changing from a gas to a liquid state by losing heat energy, often forming clouds or dew.
- 18. A graphical representation showing the states of matter of a substance under different conditions of temperature and pressure.
Down
- 1. A transition between different states of matter, such as melting, freezing, vaporization, and condensation.
- 2. Energy transferred between objects due to temperature differences, causing changes in states of matter.
- 3. The process of changing from a liquid to a gas state, including both evaporation and boiling.
- 5. The process of changing directly from a gas to a solid state without passing through the liquid state, such as frost forming on a cold surface.
- 6. The process of changing from a liquid to a gas state throughout the liquid, requiring the addition of heat to reach the boiling point.
- 8. A measure of the average kinetic energy of particles in a substance, influencing the state of matter.
- 10. The process of changing from a solid to a liquid state by absorbing heat energy.
- 12. A state of matter with no definite shape or volume, where particles are far apart and move freely in all directions.
- 13. A state of matter with definite volume but no definite shape, where particles are close together but can move past each other.
- 17. The process of changing from a liquid to a solid state by losing heat energy.
- 19. A group of atoms bonded together, forming the basic structural unit of a substance.