Chemistry Unit 1 Properties Of Matter Vocabulary

Front 1

Pure Substance

Back 1

Matter that always has exactly the same composition; and element or compound.

Front 2

Element

Back 2

A substance that cannot be broken down into simpler substances.

Front 3

Atom

Back 3

The smallest particle of an element.

Front 4

Compound

Back 4

A substance that is made from two or more simpler substances and can be broken down into those simpler substances.

Front 5

Heterogeneous Mixture

Back 5

A type of mixture in which the parts of the mixture are noticeably different from one another.

Front 6

Homogeneous Mixture

Back 6

A type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance in the mixture from another.

Front 7

Solution

Back 7

A mixture that forms when substances dissolve and form a homogenous mixture.

Front 8

Suspension

Back 8

A heterogeneous mixture that separates into layers over time.

Front 9

Colliod

Back 9

A mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension.

Front 10

Physical Property

Back 10

Any characteristic of a material that can be observed or measured without changing the composition of the substances in the material.

Front 11

Viscoity

Back 11

The tendency of a liquid to keep from flowing; resistance to flowing.

Front 12

Conductivity

Back 12

A material's ability to allow heat or electric charges to flow.

Front 13

Malleability

Back 13

The ability of a solid to be hammered without shattering.

Front 14

Melting Point

Back 14

Is the temperature at which a substance changes from solid to liquid.

Front 15

Boiling Point

Back 15

Is the temp. at which a substance boils.

Front 16

Hardness

Back 16

Is the ability of a material to be streched,cat,or carved by or do same for another material.

Front 17

Density

Back 17

Is the route of the mass of a substance to its volume.

Front 18

Physical Change

Back 18

Occurs when some of the properities of a material change, but the substance in the material remain the same.

Front 19

Chemical Property

Back 19

Is any ability to produce a change in the comp. of matter.

Front 20

Flammability

Back 20

Materials ability to burn in the presence of oxygen.

Front 21

Reactivity

Back 21

Is the property that describes how reality a substance combines chemically with other substances.

Front 22

Chemical Change

Back 22

Occur when a substance reacts and forms one or more new substances.

Front 23

Precipitate

Back 23

Is any solid that forms and separates from a liquid mixture.