Earth Science Unit 3 Test Review

Most of Earth's mass is contained within the __?__.

• Crust
• Inner Core
• Outter Core
• Mantle

__?__ is the term for Earth's magnetic field.

• Mesosphere
• Magnetosphere
• Asthenosphere
• Lithosphere

Sometimes the Magnetic Poles switch position and the South Pole becomes the North Pole.

• true
• false

Earth's main layers are based on physical characteristics.

• true
• false

__?__ is the driving mechanism behind seafloor spreading.

• Pressure
• Compressing
• Convection
• Rifting

__?__ is the process through which Earth's layers were formed.

• Stratification
• Plate Tectonics
• Seafloor Spreading
• Orogenesis

Volcanic island changes are created by the movement of a tectonic plate over __?__.

• the mantle
• convergent boundary
• divergent boundary
• a hotspot

__?__ is the scientific term for tectonic plates pulling apart.

• Stretching
• Rifting
• Cracking
• Pulling

__?__ is the movement of continents across the surface of the Earth.

• Plate Tectonics
• Tectonic Plates
• Convection Cells
• Boundaries

Tectonic plates make up the __?__.

• Mantle
• Asthenosphere
• Mesosphere
• Lithosphere