Plate Tectonics Unit Quiz

German meteorologist who formed the hypothesis of continental drift.

• Alfred Wegener

• Harry Hess

According to the theory of continental drift, the continents were all part of one landmass called ___

• glossopteris

• Pangaea

_______ proposed the seafloor spreading theory.

• Alfred Wegener

• Harry Hess

According to the theory of seafloor spreading, hot, less dense material below Earth's crust rises toward the surface at _______.

• mid-ocean ridges

• magnetic poles

Earth's crust and part of the upper mantle are broken into sections called ________.

• plates

• forks

According to the theory of plate tectonics, plates move on the _____.

• mountain

• mantle

The upper rigid part of Earth that contains the crust and part of the upper mantle is called the ________.

• lithosphere

• core

The cycle of heating, rising, cooling, and sinking is called a

• tension force

• convection current

The youngest rocks in the ocean floor are located at the mid-ocean _______.

• volcanoes

• ocean

• bottom

• ridges

The presence of the same ______ on several continents supports the idea of continental drift.

• fossils

• rocks

• plants

• all of the above