Cls 8Th Earth's Structure

Front 1

sphere

Back 1

shaped like a ball, with all points on the surface as an equal distance from the center

Front 2

geosphere

Back 2

earth's entire solid body

Front 3

gravity

Back 3

the force that every object exerts on every other object because of their masses

Front 4

density

Back 4

amount of mass in an object per its volume

Front 5

atmosphere

Back 5

layer of gases surrounding the earth

Front 6

hydrosphere

Back 6

water in, on and under the earth

Front 7

geosphere

Back 7

earth's entire solid body

Front 8

biosphere

Back 8

all of the living organisms that are on earth

Front 9

observations

Back 9

an act of recognizing and noting a fact

Front 10

Crust

Back 10

the brittle, rocky outer layer of Earth, compared to an egg shell

Front 11

mantle

Back 11

the thick middle layer in the solid part of Earth, compared to the white of an egg

Front 12

four layers of the mantle

Back 12

1.lithosphere

2. asthenosphere

3. upper mantle

4. lower mantle

Front 13

lithosphere

Back 13

uppermost layer of the mantle, brittle and rigid

Front 14

asthenosphere

Back 14

the small rocks melt because it is so hot, this plastic layer within the mantle

Front 15

upper mantle and lower mantle

Back 15

the temperature and pressure, the increased pressure prevent rocks from melting, largest layer of earth

Front 16

core

Back 16

dense metallic center of earth, compared to the yolk of an egg

Front 17

metals in the core

Back 17

iron and nickel

Front 18

2 core parts

Back 18

outer core and inner core

Front 19

outer core

Back 19

this layer is liquid because of the metals that it is composed of

Front 20

inner core

Back 20

dense iron ball

Front 21

magnetosphere

Back 21

the outer part of the magnetic field that interacts with these particles, produced by the flow of these charged particles

Front 22

landforms

Back 22

topographic features formed by processed that shape earth's surface

Front 23

elevation

Back 23

height above sea level of a particular feature

Front 24

relief

Back 24

the differences in elevation

Front 25

plains

Back 25

landforms with low relief and low elevation, the broad flat area in the center of North America

Front 26

plateaus

Back 26

areas with low relief and high elevation, area that is much higher than the surrounding land and often have steep rugged sides

Front 27

mountains

Back 27

landforms with high relief and high elevation

Front 28

how mountains form?

Back 28

1. buildup of lava on the ocean floor

2. forces inside earth fold, push and uplift huge blocks of rocks