7Th Grade Science Final Exam Review

Front 1

Solid

Back 1

Matter that has a definite volume and a definite shape.

Front 2

Liquid

Back 2

has a definite volume and no definite shape.

Front 3

Gas

Back 3

matter that has no definite volume and no definite shape.

Front 4

Element

Back 4

a substance that can not be broken down into simpler substances, and whose atoms are exactly alike.

Front 5

atom

Back 5

small particles that make up solid, liquid, and gases, have sublimatic particles called protons, neutrons, and electrons.

Front 6

atomic number

Back 6

information that can give you the number of protons/electrons.

Front 7

atomic mass

Back 7

the total number of protons and neutrons.

Front 8

proton

Back 8

positivly charged sublimatic particle.

Front 9

neutron

Back 9

no charge sublimatic particle.

Front 10

electron

Back 10

negitively charge sublimatic particle.

Front 11

metalliod

Back 11

elements that have charictoristics of both a metal and non-metal.

Front 12

metal

Back 12

elements that are malleble, ductile, generally are shiney or metallic, luster.

Front 13

non metal

Back 13

elements that are usually dull and are poor conductors.

Front 14

ionic bonding

Back 14

bonding that takes place between a metal and non metal.

Front 15

covalent bonding

Back 15

bonding that takes place between two non metals.

Front 16

alkaline earth metal

Back 16

reactive metals that have two valance electrons.

Front 17

alkali metal

Back 17

most reactive metal that has one valance electron.

Front 18

halogen

Back 18

reactive non metals that have seven valance electrons.

Front 19

noble gases

Back 19

non-reactive gases that have a complete oouter shell, 8 valance electrons.

Front 20

valance electrons

Back 20

electrons that are on the outer shell of the elements.

Front 21

wavelength

Back 21

the distance between one poit on one wave to the next.

Front 22

frequency

Back 22

the number of waves produced in a given amount of time.

Front 23

crest

Back 23

the highest point of a transverse wave.

Front 24

compression wave

Back 24

a wave in which the particles of the median vibrateback and forth along the path that the wave travels.

Front 25

trough

Back 25

the low point of a transverse wave.

Front 26

transverse wave

Back 26

a wave in which particles of the wave's medium vibrate at right angles to the direction of the wave.

Front 27

amplitude

Back 27

the maximum distance a wave vibrates from its rest position.

Front 28

condensation

Back 28

the change of state from a gas to a liquid.

Front 29

presipitation

Back 29

water falling from clouds, including rain, snow, sleet, and hail.

Front 30

evaporation

Back 30

a change of state from a liquid to a gas.

Front 31

runoff

Back 31

surface water traveling from a high point to a low point.

Front 32

groundwater

Back 32

water that is stored below earths surface.

Front 33

sublimation

Back 33

the change of state from a solid to a gas.

Front 34

infiltration

Back 34

the entry of water from the surface into the groundwater.

Front 35

transperation

Back 35

the evaporation of water from a plants leaf

Front 36

cold front

Back 36

a type of a front that brings narrow bands of violent storms.