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Physical Science; Chapter 3

Across
The state of matter that does not have a definite shape or volume and whose particles have broken apart.
The conversion of a substance from one physical form to another
The state of matter that does not have a definite shape or volume and whose particles have broken apart.
Freezing is an ___ change because energy is removed from, or taken out of, the substance as it changes state.
Because the ___ of a substance is the temperature at which the substance changes from a solid to a liquid.
The state in which matter changes in both shape and volume.
All changes of state are ___.
The state in which matter has a definite shape and volume.
Solids are composed of atoms or molecules that are in no particular order
The state in which matter takes the shape of its container and has a definite volume.
The ___ of a substance is a measure of the speed of its particles and therefore is a measure of its energy.
Vaporization that occurs throughout a liquid.
Down
The ___ are physical forms in which a substance can exist.
Simply the change of state from a liquid to a gas.
States that for a fixed amount of gas at a constant pressure, the volume of the gas increases as its temperature increases.
A liquid's resistance to flow.
A substance is the temperature at which the gas becomes a liquid and is the same temperature as the boiling point as a given pressure.
The force acting on the particles at the surface of a liquid that causes the liquid to form spherical drops.
Melting is an ___ change because energy is absorbed by the substance as its changes state.
The change of state from a solid to a liquid.
Vaporization that occurs at the surface of a liquid below its boiling point.
The change of state from a solid directly into a gas
The amount of force exerted on a given area.