| front |
back |
revisions |
lasted changed by |
history |
| Rock on the ocean floor provided the final proof of sea-floor spreading with a record of _____________________. |
magnetic reversal |
0 |
angela Wed, 16 Mar 2011 11:32:31 GMT |
 |
| Theory that explains how continents reached their current locations. |
continental drift |
0 |
angela Wed, 16 Mar 2011 11:32:31 GMT |
|
| Process that happens when Earth's magnetic poles change place |
magnetic reversal |
0 |
angela Wed, 16 Mar 2011 11:32:31 GMT |
|
| Areas where sea floor spreading occurs are called __________________. |
mid-ocean ridges |
0 |
angela Wed, 16 Mar 2011 11:32:31 GMT |
|
| The process of forming new oceanic lithosphere as magma rises to the surface. |
sea-floor spreading |
0 |
angela Wed, 16 Mar 2011 11:29:11 GMT |
|
| The single landmass split into 2 huge continents called ________________ and _________________________. |
Gondwana and Laurasia. |
0 |
angela Wed, 16 Mar 2011 11:29:11 GMT |
|
| Wegener thought all of the present continents were joined in 1 land mass called ___________________. |
Pangaea |
0 |
angela Wed, 16 Mar 2011 11:29:11 GMT |
|
| List 3 kinds of evidence that support Wegener's theory. |
1. fossils of Mesosaurus (a reptile)
2.Glossopteris (an ancient plant)
3.similar types of rock found on several continents |
0 |
angela Wed, 16 Mar 2011 11:29:11 GMT |
|
| According to Wegener, how many land masses did all the continents once form? |
one |
0 |
angela Wed, 16 Mar 2011 11:23:13 GMT |
|
| What hypothesis by Alfred Wegener explains why continents seem to fit together? |
continental drift |
0 |
angela Wed, 16 Mar 2011 11:23:13 GMT |
|
| The process by which new oceanic lithosphere forms as magma rises toward the surface and solidifies. |
sea-floor spreading |
0 |
angela Wed, 16 Mar 2011 11:23:13 GMT |
|
| The hypothesis that the continents once formed a single land mass,broke up, and drifted to their present locations. |
continental drift |
0 |
angela Wed, 16 Mar 2011 11:23:12 GMT |
|
