Plate Tectonics

__Are formed when two continental plates collide.

Active volcanoes are most likely to form at __.

Matching__on different continents are evidence for continental drift.

A lack of evidence for continental drift caused scientists to resist the concept of _existing.

Which area is likely the oldest crust?

The__is (are) an example of a transform boundary.

The boundary between two plates moving together is called a__.

The presence of the same__on several continents supports the hypothesis of continental drift.

What do the arrows in the diagram represent?

The result of plate movement can be seen at ___.

While studying the ocean floor, scientists found__bands of magnetism.

The alignment of iron in rock when they formed reflects that Earth's_has reversed itself.

The youngest rocks on the ocean floor are located __.

What type of plate boundary occurs between the North American Plate and the Eurasian Plate?

Plates of the lithosphere float on the __.

What type of plate boundary occurs between the Nazca Plate and the South American Plate?

Which are of the diagram shows the subduction zone?

When the force on rocks is great enough, they break, producing vibrations called__.

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

Plates move apart at__boundaries.

Scientists have observed that the plates move at rates ranging from 1-12 cm per __.

Scientists believe that differences in__hot materials in earth to rise toward earth's surface.

Plates slide past one another at __.