Terms For Earth Science Chapter 2 Activities 3 And 4 (Book 3)

Front 1

density

Back 1

the mass per unit of volume of a material or substance

Front 2

Newton's Law of Gravitation

Back 2

the gravitational foce (F) between any two objects in the universe can be expressed by the formula F=gm1m2/d2
(force=the product of the masses of the two objects times the gravitational constant divided by the distance between them, squared)

Front 3

core

Back 3

the solid, innermost part of the Earth consisting mainly of iron

Front 4

thermal convection

Back 4

a pattern of movement in a fluid caused by heating from below and cooling from above

Front 5

mantle

Back 5

the section of the Earth that contains the most mass,composed mainly of iron, magnesium, and aluminum silicate minerals

Front 6

crust

Back 6

the thin outermost layer of the earth, with the least dense rocks

Front 7

inner core

Back 7

the innermost layer of the earth, under such great pressure that it remains solid

Front 8

outer core

Back 8

the outer layer of the core, hot enough that it is molten

Front 9

plate tectonics

Back 9

the field of study of plate motion; from the greek word "tekton"

Front 10

continental accretion

Back 10

the growth of a continent along its edges

Front 11

hot spot

Back 11

a narrow plume of unusually hot mantle material that originates at the boundary between the mantle and the outer core