7th HMH Unit 2 L3&4 Vocab

the outermost solid layer of Earth

• crust

• mantle

• convection

• core

located between the core and the crust

• crust

• convection

• mantle

• core

the movement of matter that results from differences in density caused by variations in temperature

• mantle

• convection

• core

• crust

extends from below the mantle to the center of Earth

• mantle

• crust

• convection

• core

the outermost, rigid layer of Earth

• lithosphere

• asthenosphere

• mesosphere

• mantle

a layer of weak or soft mantle that is made of rock that flows slowly

• lithosphere

• mesosphere

• asthenosphere

• crust

the strong, lower part of the mantle

• core

• asthenosphere

• mesosphere

• lithosphere

scientists think that about 245 million years ago, the continents were joined in a single large landmass

• Pangaea

• sea-floor spreading

• plate tectonics

• tectonic plates

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

to explain the age and magnetic patterns of sea-floor rocks, scientists proposed a process

• Pangaea

• plate tectonics

• sea-floor spreading

• tectonic plates

describes large-scale movements of Earth’s lithosphere, which is made up of the crust and the rigid, upper part of the mantle

• Pangaea

• plate tectonics

• tectonic plates

• sea-floor spreading

Tags

NGSS.MS-ESS2-3