Strangescience: Plate Tectonics Chapter Review

The East African Rift is an example of a 

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

The existence of coal beds in Antarctica indicates that the continent once had  

While studying the ocean floor, scientists found ____ bands of magnetism. 

The driving forces of tectonic plates are related to convection currents in Earth’s ___ 

Plates slide past one another at 

Wegener believed that the continents were part of a supercontinent about ____ years ago.

 The weight of a subducting plate helps to pull the lithosphere into a subduction zone  

The ____ is (are) an example of a transform boundary 

These  currents inside Earth might drive plate motion.

These  are formed when two continental plates collide. 

Same ____ on several continents supports the hypothesis of continental drift.

The circulation of material caused by differences in density is called convection. 

Seafloor spreading occurs because 

The youngest rocks on the ocean floor are located  

Plates of the lithosphere float on the

Wegener’s could not explain how or why Earth’s continents move.

The Himalayan mountain range of India was formed at a  

It is  a sensitive device used to detect magnetic fields on the seafloor. 

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

The crust and upper mantle make up Earth's 

The boundary between two plates moving together is called a 

Matching ____ on different continents are evidence for continental drift. 

Active volcanoes are most likely to form at  

Features found at divergent plate boundaries include  

This  occurs when one tectonic plate descends beneath another. 

 In order to complete a convection current, the rising material must eventually 

Continents move at a speed of a few centimeters per

Iron particles in rocks aligned in bands because of reversal of 

Convection currents in the mantle are caused by  differences in