Solid: closely packed particles cause matter to have a definite shape and definite volume.

Crystalline solids: particles form a regular repeating pattern called crystals. Example: salt, sugar, and snow.

Amorphous solids: particles not arranged in a repeating pattern. Example: Glass, plastic, and rubber.

Liquid: particles are free to move so a liquid has a definite volume but no definite shape.

Surface Tension: An inward force, or pull among the molecules in a liquid that brings the molecules on the surface closer together.

Viscosity: A liquid's resistance to flowing. Example: Honey has a high viscosity.

Gas: particles are able to move and spread out filling all space available, thus gases have no definite shape or definite volume.

Pressure: gas particles constantly collide with one another and the walls of their container. Pressure is the outward push divided by the area of the walls of the container. Pressure= Force/Area.

Temperature: the higher the temperature the faster particles move.

Melting: When a solid changes to a liquid

Melting point: the temperature at which a substance melts.

Freezing: When a liquid changes to a solid

Freezing point: the temperature when a substance freezes.

Vaporization: When a liquid changes to a gas

Evaporation: takes place only on the surface of the liquid.

Boiling: When vaporization occurs both below the and at the surface.

Boiling Point: Temperature at which a liquid boils.

Condensation: When a gas changes to a liquid.

Sublimation: When a substance changes straight from a solid to a gas.

Charles’s Law: When the temperature of a gas at a constant pressure is increased the volume is increased, if the temperature is decreased then the volume is decreased.

Directly proportional:

A. Directly proportional: as one amount increases, another amount increases at the same rate. (goes with Charles law)

Boyle's Law: When the pressure of a gas at a constant temperature is increased the volume decreases, if the temperature is decreased then the volume is increased.

Inversely proportional:

B. Inversely proportional: When the value of one variable increases, the other decreases (goes with Boyle's law)

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Matter

丂匚丨丂ㄒㄩᗪㄚ Ꮆㄩ丨ᗪ乇 1

Question	Answer
Solid	Solid: closely packed particles cause matter to have a definite shape and definite volume.
Crystalline solids	Crystalline solids: particles form a regular repeating pattern called crystals. Example: salt, sugar, and snow.
Amorphous solids:	Amorphous solids: particles not arranged in a repeating pattern. Example: Glass, plastic, and rubber.
Liquid	Liquid: particles are free to move so a liquid has a definite volume but no definite shape.
Surface Tension	Surface Tension: An inward force, or pull among the molecules in a liquid that brings the molecules on the surface closer together.
Viscosity	Viscosity: A liquid's resistance to flowing. Example: Honey has a high viscosity.
Gas	Gas: particles are able to move and spread out filling all space available, thus gases have no definite shape or definite volume.
Pressure	Pressure: gas particles constantly collide with one another and the walls of their container. Pressure is the outward push divided by the area of the walls of the container. Pressure= Force/Area.
Temperature	Temperature: the higher the temperature the faster particles move.
Melting	Melting: When a solid changes to a liquid
Melting point	Melting point: the temperature at which a substance melts.
Freezing	Freezing: When a liquid changes to a solid
Freezing point	Freezing point: the temperature when a substance freezes.
Vaporization	Vaporization: When a liquid changes to a gas
Evaporation	Evaporation: takes place only on the surface of the liquid.
Boiling	Boiling: When vaporization occurs both below the and at the surface.
Boiling Point	Boiling Point: Temperature at which a liquid boils.
Condensation	Condensation: When a gas changes to a liquid.
Sublimation	Sublimation: When a substance changes straight from a solid to a gas.
Charles’s Law	Charles’s Law: When the temperature of a gas at a constant pressure is increased the volume is increased, if the temperature is decreased then the volume is decreased.
Directly proportional:	A. Directly proportional: as one amount increases, another amount increases at the same rate. (goes with Charles law)
Boyle's Law:	Boyle's Law: When the pressure of a gas at a constant temperature is increased the volume decreases, if the temperature is decreased then the volume is increased.
Inversely proportional:	B. Inversely proportional: When the value of one variable increases, the other decreases (goes with Boyle's law)