Earth's Structure and Tectonic Plates

What drives tectonic plate movement? 

• gravity
• coriolis effect
• convection currents
• the earth's magnetic core

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

The Great Rift Valley in Africa and the Mid-Atlantic Ridge were both created by this type of plate boundary. 

• divergent
• convergent
• transform
• subduction

Tags

NGSS.MS-ESS2-3

Most geologists rejected Alfred Wegener's idea of continental drift because...

• it did not agree with their current theory
• Wegener was interested in what Earth was like millions of years ago
• Wegener used several different types of evidence to support his hypothesis
• Wegener could not identify the force that moved the continents

The thinnest layer of Earth

• core

• mantle

• crust

The thickest layer of Earth

• core

• mantle

• crust

Identify layer  #20.

• mantle
• pizza crust
• inner core
• outer core

What is the correct order of the physical layers of the geosphere?

• lithosphere, asthenosphere, mesosphere, outer core, inner core
• inner core, asthenosphere, lithosphere, outer core, mesosphere
• mesosphere, lithosphere, asthenosphere, inner core, outer core
• outer core, inner core, mesosphere, asthenosphere, lithosphere

If we compare the temperature and pressure of Earth's mantle to the core, what differences can we expect as we move downward into Earth?

• Both temperature and pressure increase.
• Both temperature and pressure decrease.
• Temperature decreases and pressure increases.
• Temperature increases and pressure decreases.

Tags

NGSS.HS-ESS2-3

Which layer of Earth is LIQUID?

• upper mantle
• lower mantle
• outer core
• inner core

The lower boundary of the crust is called the Mohorovicic discontinuity, or __________.

• "Moho"

• plasticity

• oceanic crust

• core

Tags

NGSS.MS-ESS1-4