JACKSON278 EARTH SCIENCE REVIEW @ 278

seafloor spreading occurs because

Weneger believed that the continents originally broke apart about ___ years ago

the boundary between two plates moving together is called a ____

When a volcano erupts the molten material flows onto the Earth's surface is called__

plates of the lithosphere float on the

____ is an example of a transform boundary

The layer on which the tectonic plates move is the

Alignment of iron in rocks formed reflects Earth's ___ has reversed itself in the past.

The Theory that continents have slowly moved to their current locations is called ___

When a volcano erupts the molten material flows onto the Earth's surface is called__

Bands of rock on seafloor show alternating magnetic patterns indicate Earth's magnetic field _

In order to complete a convection current, the rising material must eventually___ Earth.

Matching __ different continents are evidence for continental drift.

Tsunamis are caused by___

Scientists believe differences in __ cause hot rock in asthenosphere to rise to Earth's surface

The presence of the same ___ on several continents supports hypothesis of continental drift.

A fossil plant that helps support the theory of continental drift is ____

The result of the plate movement can be seen at

___ are formed when 2 continental plates collide

At a Transform boundary

THE _ are mountains formed by collisions of the Indio-Australina plate and the Eurasian Plate

Scientists have observed that the plates move at rates ranging from 1 cm to 12 cm per

No explanation of continental drift prevented many from accepting supercontinent call_ existed.

The youngest rocks on the ocean floor are located......

Plates move apart at _____ boundaries

___ currents inside Earth might drive plate motion

While studying the ocean floor scientists found ___bands of magnetism

Plates slide past one another at

The great Rift Valley in Africa is a ___