States of Matter

4. An explanation of how the particles in gases behave.
7. When a liquid becomes a solid thanks to cold.
9. Anything that takes up space and has mass.
10. The process of a gas changing directly to a solid without forming a liquid.
11. When particles are at the liquid’s surface and have enough kinetic energy to escape the attractive forces of the liquid.
13. When a solid becomes a liquid thanks to heat.
14. The temperature at which the pressure of the vapor in the liquid is equal to the external pressure acting on the surface of the liquid.
15. The energy required to change a substance from solid to liquid at its melting point.
17. A state where particles are closely packed together with little kinetic energy and little movement. They have a definite shape and volume

1. A state where particles don’t move as rapidly and have a definite volume. The particles cling together because they don’t have as much kinetic energy as gasses. They take the shape of the container they’re in.
2. The process in which a gas becomes a liquid. The reverse of vaporization.
3. The process when particles move fast enough to escape the attractive forces of other particles, they enter the gas state.
5. The amount of energy required for the liquid at its boiling point to become a gas.
6. The second way that a liquid can vaporize.
8. A state where particles of matter are in rapid, constant, random motion. These particles collide with each other and the walls of any container they’re in, barely losing energy from these collisions.
12. The temperature at which a solid becomes a liquid.
16. The process of a solid changing directly to a gas without forming a liquid.