7Th Grade Science Final Vocabulary

Front 1

solid

Back 1

matter that has a definite volume and def inite shape

Front 2

liquid

Back 2

matter that has a definite volume and no definite shape

Front 3

gas

Back 3

matter that has no definite shape or volume

Front 4

element

Back 4

a substance that can not be broken down into simple substances, and the whose atomes are exactly alike

Front 5

atom

Back 5

small particles that make up solid,liquad,and gases, have substances particales called protons , neutrons, and electrons

Front 6

atomic number

Back 6

information that can give you the number of protons /or eletrons

Front 7

atomis mass

Back 7

the totalnumber of protons and neutrons

Front 8

proton

Back 8

possitively charge subatomic particle

Front 9

neutron

Back 9

no charge subatomic particle

Front 10

eletrons

Back 10

negatively charge subatomic particle

Front 11

metalloid

Back 11

elements that have characteristics of both a metals and non-metal

Front 12

metal

Back 12

elements that are mallesble, ductile, generally are shiny or metallic, luster

Front 13

non-metal

Back 13

element that are usually
dull and are poor condutors

Front 14

ionic bonding

Back 14

bonding that takes place between a metal and non-meatls

Front 15

covalent bonding

Back 15

bonding that takes place between two non-meatals

Front 16

alkaline earth metal

Back 16

reactive metals that have two valence electrons

Front 17

alkali metal

Back 17

most reactive metals that have one valance electrons

Front 18

halogen

Back 18

reactive non-metals that have seven valence eletrons

Front 19

noble gases

Back 19

non-reactive gases that have a complete outer shell, 8 valence eletrons

Front 20

valence eletron

Back 20

leetrons that are on the outer shell of the elements

Front 21

wavelngth

Back 21

the distance between a point on one wave

Front 22

frequency

Back 22

the number of waves produced in a givenamount of time

Front 23

crest

Back 23

the highest point of a transverse wave

Front 24

compression

Back 24

a wave in which the particles of the medium vibrate back and forth along the path that the waves travels

Front 25

trough

Back 25

the low point of a transverse wave

Front 26

transveres wave

Back 26

a wave in witch the partcial of the wave's medium vibrate at fight angles to the direction of the wave

Front 27

amplitude

Back 27

the maximum distance a wave can travle

Front 28

condensation

Back 28

the charge of state from a gas to a liquid

Front 29

precipitation

Back 29

water falling from th clouds

Front 30

evaporation

Back 30

the charge of a state from a liquid to a gas

Front 31

runoff

Back 31

sufface water travling from a high point to a low point

Front 32

groundwater

Back 32

water below the earths surface

Front 33

sublimation

Back 33

the charge 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

transpiration

Back 35

the evaporation of water from a plant leaf

Front 36

cold front

Back 36

a type of front that brings cold air

Front 37

front

Back 37

warm and cold air

Front 38

air pressure

Back 38

the amount of force exerted within the atomosphere

Front 39

humidity

Back 39

the amount of water vapor in the air

Front 40

warm front

Back 40

a type of front the brings warm air

Front 41

air mass

Back 41

a large body of air

Front 42

conduction

Back 42

the transfer of energy from the sun

Front 43

dew point

Back 43

the point where the grass gets wet

Front 44

occluded

Back 44

it produces very hard winds

Front 45

radidtion

Back 45

it heat up the earths surface

Front 46

reltive humidity

Back 46

the amount of water vapor in the air

Front 47

stationnary front

Back 47

a front that produces light

Front 48

low pressure

Back 48

it counter clockwise the way of the wind

Front 49

high pressure

Back 49

it is clockwise in the air