Science Chapter 9 and 10 Vocab

hypothesis that continents are in constant motion.

• motion

• continental drift

• viscosity

• rotation

naturally preserved remains, imprints, or traces of organisms.

• fossils

• mold

• cast

• mineral

middle layer of Earth between the crust above & the core below.

• inner

• center

• mantle

• middle

ancient supercontinent, composed of land that forms today's continents.

• germany

• Pangea

• world

• earth

an event in which the magnetic field reverses direction.

• Magnetic change

• Magnetic diversion

• Magnetic reflection

• magnetic reversal

mountain range located on the seafloor in the middle of the ocean; formed by magma at divergent plate boundaries

• mid-ocean ridge

• aquatic volcano

• mid-ocean crust

the process by which new oceanic crust forms along the mid-ocean ridge as old oceanic crust moves away from the ridge.

• convergent plate boundary

• viscocity

• seafloor spreading

• convection

the circulation of particles within a material caused by differences in temperature & density.

• convection

• convergent plate boundary

• subduction

• plate tectonics

the boundary between two plates that move towards each other & the two plates collide.

• convergent plate boundary

• divergent plate boundary

• transform plate boundary

the boundary between two plates that move away from each other & the two plates separate.

• Divergent plate boundary

• convergent plate boundary

• transform plate boundary