Lesson 1; States of Matter

Solid

A state of matter that has a definite shape and a definite volume

Liquid

the state of matter that has a definite volume but not a definite shape

Gas

A state of matter with no definite shape or volume

Crystalline Solid

A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern

Amorphous Solid

A solid made up of particles that are not arranged in a regular pattern

Fluid

A substance that flows

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

Pressure

the amount of force pushed outward divided by the walls of a container

The amount of space that matter fills is its

volume

A state of matter with a definite volume, but no definite shape is a

liquid

A (blank) will always take the shape and volume of its container.

gas

The (blank) is a measure of the average speed of the particles in a substance.

temperature

A (blank) has a definite volume but no shape of its own.

liquid

The (blank) of a gas is the force of its outward push divided by the area of the walls of its container.

pressure

Viscosity is the inward force among the molecules of a liquid.

false

A amorphous solid has a definite melting point.

false

Both gases and liquids are fluids.

true

All solids have a closely packed, fixed arrangement of particles.

true