Science Unit 1 Continued

Front 1

Density

Back 1

Mass/ volume

How dense an object is

Hint 1

Front 2

Seismic waves

Back 2

The waves that are sent out from an earthquake

Hint 2

Front 3

Crust

Back 3

The smallest part of the earth and the least dense

Hint 3

Front 4

Mantle

Back 4

The largest part of the earth

Hint 4

Front 5

Outer core

Back 5

One of the cores, it is liquid rock

Hint 5

Front 6

Inner core

Back 6

Most dense and it is made up of iron

Hint 6

Front 7

Continental crust

Back 7

Land part of crust

Hint 7

Front 8

Oceanic crust

Back 8

Water part of crust

Hint 8

Front 9

Lithosphere

Back 9

The bottom of the crust and top of the mantle

Hint 9

Front 10

Asthenosphere

Back 10

Bottom of the mantle

Hint 10

Front 11

Tension

Back 11

Divergent plate boundary pulling away from each other

Hint 11

Front 12

Compression

Back 12

Convergent plate boundary pushed towards each other

Hint 12

Front 13

Shearing

Back 13

Transform plate boundary and pushing and pulling

Hint 13

Front 14

Convection Currents

Back 14

The rising and falling of molten rock in earth's mantle

Hint 14

Front 15

Theory of plate tectonics

Back 15

different plates that move, cause new crust to be formed

Hint 15

Front 16

Subduction

Back 16

Happens at convergent plate boundaries, trench

Hint 16

Front 17

Hot Spots

Back 17

Areas of magma in the middle of plates

Hint 17

Front 18

Convergent plate boundary

Back 18

subduction can occur, volcanoes and earthquakes occur

Hint 18

Front 19

Divergent Plate Boundary

Back 19

A tension force

Hint 19

Front 20

Transform Plate Boundary

Back 20

A shearing force and only earthquakes occur

Hint 20

Front 21

Mid Ocean Ridge

Back 21

Underwater mountain ranges that occur at divergent plate boundaries

Hint 21

Front 22

Pangea

Back 22

supercontinent, all continents connected

Hint 22

Front 23

Island Arc's

Back 23

Island chains

Hint 23

Front 24

Faults

Back 24

Cracks in Earth's crust

Hint 24

Front 25

Trench

Back 25

Deep underwater valleys created through subduction

Hint 25

Front 26

Folded Mountain

Back 26

Mountains formed at convergent continental to continental

Hint 26

Front 27

Pacific Ring of Fire

Back 27

Area at pacific tectonic plate where many volcanic eruptions occur

Hint 27

Front 28

Seismic Activity

Back 28

Activity in the earth's layers, mainly earthquakes

Hint 28

Front 29

Land-Forms

Back 29

Forms of earth's crust such as mountains, valleys, and trenches

Hint 29

Front 30

Sea floor spreading

Back 30

occurs at mid ocean ridges

Hint 30

Front 31

San Andreas Fault

Back 31

Fault in California

Hint 31

Front 32

Continental Drift

Back 32

The movement of continents over a long amount of time

Hint 32