Plate Tectonics

Front 1

These three things provided Wengner with support for his continental drift theory

Back 1

Fossils, Rocks, Climate

Front 2

Located at the mid-ocean ridges I'm giving us evidence of sea spreading

Back 2

The youngest rocks

Front 3

The transfer of what energy inside Earth moves Plates?

Back 3

Heat

Front 4

Alfred Wegener

Back 4

First to suggest all continents were joined in the past (Pangea)

Front 5

Harry Hess

Back 5

Had theory about seafloor spreading

Front 6

Earth's crust and mantle are broken into sections called?

Back 6

Plates

Front 7

How are mountains formed?

Back 7

By one continental plate colliding with another continental plate

Front 8

New Ocean Crust is formed at a

Back 8

Mid-Ocean Ridge

Front 9

When two continental plates move apart what can form?

Back 9

A Rift Valley

Front 10

A Rift Valley can form where two continental plates are....?

Back 10

Moving apart

Front 11

Continental Drift

Back 11

Hypothesis of continents moving slowly

Front 12

Pangea

Back 12

All continents might have once been connected in a large landmass

Front 13

Convection Current

Back 13

The cycle of heating, rising, cooling, and sinking

Front 14

Mantle

Back 14

Just below Earths Crust

Front 15

Lithosphere

Back 15

Crust and part of the upper mantle

Front 16

Asthenosphere

Back 16

Plastic like layer of Earth's surface

Hint 16

Continental Plates move on this

Front 17

Seafloor Spreading

Back 17

Hot magma forced upward at mid-ocean ridges

Front 18

Plates

Back 18

Sections of Earth's crust and part of the upper mantle

Front 19

Plate Tectonics

Back 19

Theory that Earth's crust and upper mantle are in sections that move