Last Statement – Iron and nickel You Start- A layer in Earth’s mantle in which convection occurs among soft rock. I have- Asthenosphere Who has- The type of heat transfer you feel when standing near a fire. I have- radiation Who has- the idea that at one point in Earth’s history, the continents were once connected and later moved and separated into their present locations. I have- Continental Drift Who has- The feature that is created by sea-floor spreading. I have- Mid-Ocean Ridge Who has- A deep depression in the ocean floor caused by the subduction of one plate under a lesser dense plate. I have- Deep-Ocean Trench Who has- A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of oceanic or continental crust. I have- Plate Who has- The boundary in which two plates are coming together. I have- Convergent boundary Who has- The layer in Earth’s core that is liquid, has convection currents, and creates Earth’s magnetic field. I have- Outer core Who has- A piece of indirect evidence from Earthquakes used by scientists to determine Earth’s layers I have- Seismic Waves Who has- The solid layer in Earth that is the densest and under the most pressure. I have- Inner Core Who has- The rigid, uppermost part of the mantle that includes the crust. I have- Lithosphere Who has- The process where warmer, less dense liquid rises and the cooler, more dense liquid sinks. I have- Convection currents Who has- The dense, dark rock type that forms the oceanic crust. I have- Basalt Who has- The name given to the arrangement of the continents 300 million years ago, when they were all connected together. I have- Pangaea Who has- The process of a denser plate going below a less dense plate, when 2 plates come together I have- Subduction Who has- The solid rock layer found in Earth that is divided into 3 smaller layers. I have- The Mantle Who has- This type of crust is thicker, less dense, and made of granite. I have- Continental crust Who has- The boundary where two plates are moving away from each other causing new crust to form. I have- Divergent boudary Who has- The type of heat transfer when particles are in contact with each other, transferring heat. I have- Conduction Who has- The scientist who first came up with the Continental Drift Theory. I have- Alfred Wegener Who has- The type of force that builds up land features, for example mountains. I have- constructive Who has- The type of boundary where two plates slide next to each other, causing earthquakes. I have- Transform boundary Who has- The process in which two oceanic plates are moving away from each other creating new sea-floor. I have- Sea-Floor Spreading Who has- The type of force the wears away land features I have- Destructive Who has- Evidence on the sea-floor that documents the reversal of Earth’s magnetic poles and supports sea-floor spreading I have- Magnetic Stripes Who has- The theory that pieces of Earth’s lithosphere are in slow, constant motion, driven by convection currents in the mantle. I have- Plate Tectonics Who has- This forms as a result of two continental plates diverging. I have- Rift Valley Who has- The less dense type of rock that makes up continental crust. I have- Granite Who has- An ancient organism that has been preserved in rock I have- Fossil Who has- The force that pulls all objects to the center of the Earth I have- Gravity Who has- The two main elements that make up Earth’s core I haveWho hasI haveWho hasI haveWho has-