Science Vocab Chapter 15

Front 1

Chemical change

Back 1

Change of one substance into a new substance

Front 2

Chemical property

Back 2

Any characteristic of a substance

Front 3

Colloid

Back 3

Heterogeneous mixture whose particles never settle

Front 4

Compound

Back 4

Substance formed from two or more elements in which the exact combination and proportion of elements is always the same

Front 5

Distillation

Back 5

Process that can separate two substances in a mixture evaporating a liquid and re condensing it's vapor

Front 6

Element

Back 6

Substance with atoms that are all alike

Front 7

Heterogeneous mixture

Back 7

Mixture in which different materials are unevenly distributed and are easily identified

Front 8

Homogeneous mixture

Back 8

Solid liquid or gas that contains two or more substances Blended evenly throughout

Front 9

Law of conservation of mass

Back 9

States that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change

Front 10

Physical change

Back 10

Any change in size shape or state of matter

Front 11

Physical property

Back 11

Any characteristic of a material such as size or shape that you can observe or attempt to observe without changing the identity of the material

Front 12

Solution

Back 12

Homogeneous mixture that remains constantly and uniformly mixed and has particles that are so small they cannot be seen with a microscope

Front 13

Substance

Back 13

Element or compound that cannot be broken down into smaller components

Front 14

Suspension

Back 14

Heterogeneous mixture containing a liquid in which visible particles settle

Front 15

Tyndall effect

Back 15

Scattering of a light beam as it passes through a colloid