Science 2.1 And 2.2 Vocab

Front 1

a shorthand method used to show the number and type of atoms present in the smallest representative unit of a substance

Back 1

chemical formula

Front 2

a combination of 2 or more elements. a compound has very different properties from those of the elements that make it up and is normally difficult to break down into elements

Back 2

compound

Front 3

a material through which heat can move in conduction; a material through which electrons can move easily.

Back 3

conductor

Front 4

to form a solution

Back 4

dissolve

Front 5

elements

Back 5

a substance that cannot be broken down anymore

Front 6

a kind of matter that has no definite shape or volume and tends to fill whatever space is available to it.

Back 6

gas

Front 7

a kind of matter that has a definite volume but takes the shape of the container that holds it

Back 7

liquid

Front 8

a substance made of two or more substances that could vary in amount and often are easily separated.

Back 8

mixture

Front 9

the property of matter that has three common forms- solid, liquid, and gas- and one rare form- plasma, which exists at high temperatures

Back 9

phase

Front 10

matter, existing at very high temperatures, that consists of bare nuclei and free elctrons

Back 10

plasma

Front 11

a quality that can be used to describe something so that it can be distinquished from soemthing else

Back 11

property

Front 12

a solution that contains the maximum amount of solute that will dissolve at a given temperatures

Back 12

aturated solution

Front 13

a kind of matter that has a definite volume and that keeps it in shape when put in a container of another shape.

Back 13

solid

Front 14

the substance that dissolves in another substance [sugar dissolves in water, water is solute]

Back 14

solute

Front 15

the substance in which another substance dissolves

Back 15

solvent

Front 16

a special kind of mixture in which the substances are spread evenly throughout each other

Back 16

solution

Front 17

a particular kind of matter. water, wood, and glass are each different kinds of matter and substances

Back 17

substance

Front 18

a solution that contains less then the maximum amount of solute that will dissolve at a given temperature

Back 18

unsaturated solution

Front 19

the process in which bubbles of gas form within a liquid that has been heated to a high enough temperature

Back 19

boiling

Front 20

the temperature at which boiling begins

Back 20

boiling point

Front 21

a change that produces a new substance

Back 21

chemical change

Front 22

able to burn

Back 22

combustible

Front 23

burning: a chemical change in which the substance combines with oxygen

Back 23

combustion

Front 24

the change in phase from gas to liquid, the reverse of evaporation or boiling

Back 24

condensation

Front 25

the change in phase from liquid to gas at a temperature below the boiling temperature

Back 25

evaporation

Front 26

the change in phase from liquid to solid

Back 26

freezing

Front 27

the change in phase from solid to liquid

Back 27

melting

Front 28

the temperature at which a substance beings to melt

Back 28

melting point

Front 29

a change in the properties of a substance without a change in the substance itself.

Back 29

physical change

Front 30

a term applied to a substance that is able to dissolve in a particular substance

Back 30

soluble

Front 31

the change from solid to gas or gas to solid without going through the liquid phase

Back 31

sublimation

Front 32

a device to control heating and cooling

Back 32

thermostat

Front 33

water in the gas phase

Back 33

water vapor