The Study of Physical Science - Classification of Matter

Vocabulary flashcards covering key definitions and concepts from Chapter 1: The Study of Physical Science, including classifications of matter, types of mixtures, separation techniques, and colloids.

Technology

The use of science to solve problems and answer questions.

Matter

Anything that takes up space and has mass.

Substance

Matter in which all particles are identical, having a fixed composition.

Mixture

Two or more substances physically combined with a variable composition.

Element

The simplest form of matter from which more complex substances are made, listed on the Periodic Table.

Compound

Two or more elements chemically combined in a fixed proportion that can only be broken down by chemical reactions.

Heterogeneous Mixture

A mixture in which different parts are visible and the distribution of particles is non-uniform.

Homogeneous Mixture

A mixture in which different parts are not visible and every sample looks identical throughout; also called a solution.

Filtration

The use of paper or other materials or tools to remove solid particles from a mixture.

Distillation

A method of separating a liquid mixture by heating it so the liquid evaporates and condenses, leaving solid particles behind.

Chromatography

A method of separation of mixtures according to how the different components are absorbed or solubilized as they move through a medium.

Suspension

A mixture in which the particles of a substance are mixed throughout but are large enough to settle over time.

Colloid

A mixture in which particles are dispersed throughout but are not large enough to settle.

Tyndall Effect

The scattering of light by particles in a colloid or suspension.

Emulsion

A specific type of colloid consisting of droplets of a liquid dispersed in another liquid.

Sols and Gels

Specific types of colloids consisting of solids dispersed in liquids.

Aerosol

A specific type of colloid consisting of liquid or solid droplets dispersed in a gas.