Science Ch 3 Grade 9

Front 1

proposed all matter is made up of all extremely small particles

Back 1

john dalton

Front 2

basic functional units of matter

Back 2

molecules

Front 3

provides the basis for the scientific understanding of all matter

Back 3

atomic theory of matter

Front 4

it is to explain the molecular motion

Back 4

kinetic theory of matter

Front 5

the faster atoms or molecules are moving the less they are affected by cohension

Back 5

cohesion

Front 6

observed that microscopic pollen grains in a drop of water move in a random zigzag motion

Back 6

robert brown

Front 7

living pollen grains were moving their own until he discovered that nonliving microscopic particles such as granite dust and smoke particles exhibit the same random motion is what kind of motion

Back 7

robert motion

Front 8

the process of mix molecules of one substance with another substance by random molecular motion

Back 8

diffusion

Front 9

certain solids such as cellophane parchment skin and the member brains of living cells

Back 9

semipermeable

Front 10

one way diffusion through a sempipermeable membrane is

Back 10

osmosis

Front 11

solids are those whose molecules or atoms are arranged in a well ordered pattern

Back 11

crystalline

Front 12

solids such as tar wax rubber butter and glass do not have their molecules arranged in orderly patterns

Back 12

amorphous

Front 13

is the ability of a solid to recover its original shape after being deformed

Back 13

elasticity

Front 14

governs permanent deformation

Back 14

plasticity

Front 15

the resistance of a material to certain types of small deformation

Back 15

hardness

Front 16

hardness used frequently by mineralogist for identification of minerals

Back 16

mohs scale

Front 17

measures how easily a material is dented by a hard ball

Back 17

brinell hardness

Front 18

the molecules in the object are pulled apart

Back 18

stretching

Front 19

is expressed mathematically by the following equation f=kx

Back 19

hookes law

Front 20

is the opposite of stretching

Back 20

compressive

Front 21

is another common form of deformation

Back 21

bending

Front 22

the last major type of deformation is

Back 22

torsion

Front 23

attraction to molecules of a different type

Back 23

adhesions

Front 24

depends upon the strength of the cohesion in the liquid

Back 24

surface tension

Front 25

curved surface

Back 25

meniscus

Front 26

the phenomenon in which liquids in thin tubes rise above or fall beneath their own levels

Back 26

capillary

Front 27

the force exerted per unit of area

Back 27

pressure

Front 28

in the SI unit of pressure is

Back 28

pascal

Front 29

by gravity pulling on the liquid it its called what

Back 29

gravitational pressure

Front 30

this scientific law is now called

Back 30

pascals principle

Front 31

used to multiply force in barber chairs automobile brakes service station lifts

Back 31

hydraulic press