| A | B |
|---|
| Geology | the study of the earth |
| Crust | the outermost layer of the earth |
| % of water on earth | 75% |
| island | a landform surrounded by water |
| isthmus | a small peninsula |
| delta | where a riverseparates into a body of water |
| lake | a body of water surrounded by land |
| magma | liquid melted rock in the mantle |
| faults | where two plates meet |
| Continental Drift Theory | how continents are constantly drifting |
| Convection | the heating and cooling of the mantle |
| Converging (2 types) | when two plate crash together |
| core | the center of the earth |
| continents | portions of land that rise above sea level |
| 4 major types of landforms | mountains, |
| archipelago | a grouping of islands |
| peninsula | an extending portion of land into an ocean |
| gulf | a body of water surruonded on three sides |
| butte | a rock pillar that is taller than a mesa |
| lava | magma on the earth's surface |
| plate techtonics | sections of the srust that float on pockets of magma in the mantle |
| Sea Floor Spreading | when two ocean plates meet and spread |
| spreading | when any two of the same type of plate spread apart |
| faulting | wher two plate fault |
| mantle | the third and largest part of the earth |
| relief | a |
| strait | a small river connecting two bodies of water |
| volcano | a mountain, usually on a fault line, that lets out lava |
| sound | a portion of water between two parts of land |
| canyon | c carved hole int the crust made by water |
| volcanism | the act of volcanos |
| fold | a place where two plates fold over each other |
| Pangea | the point in time where the earth was one massive continent |
| Rift Valley | when two plates spread and create a rift valley |
| subduction | when oceanic plates and continental plates meet and the oceanic plate goes under the continental plate |
| Ring of Fire | where a fault line lies and volcanos rise to let magma out |
