Plate Tectonics Mrs. G

According to Wegener’s hypothesis of continental drift... *

• Earth’s surface is made up of seven major landmasses.

• the continents do not move.

• Earth is slowly cooling and shrinking

• the continents were once joined together in a single landmass.

What is Pangaea?

• the name of a German scientist

• the name of the supercontinent that existed millions of years ago

• another name for continental drift

• the name of an ancient fossil

A plate boundary where two plates move away from each other is called...

• a convergent boundary.

• a transform boundary.

• a divergent boundary.

What is a fault?

• Breaks in the Earth's inner core where rocks have slipped past each other.

• Breaks in the Earth's core where rocks have slipped past each other.

• Breaks in the Earth's Mantle where rocks have slipped past each other.

• Breaks in Earth’s crust where rocks have slipped past each other.

A plate boundary where two plates move toward each other is called...

• a convergent boundary.

• a divergent boundary.

• a transform boundary.

In sea-floor spreading, molten material rises from the mantle and erupts...

• along the edges of all the continents.

• along mid-ocean ridges.

• in deep-ocean trenches.

An instrument composed of a small, light-weight magnet called a needle, that SHOWS DIRECTIONS is called...

• a magnet.

• a watch.

• a compass.

A place where two plates slip past each other, moving in opposite directions, is known as a...

• transform boundary.

• divergent boundary.

• convergent boundary.

A collision between two pieces of continental crust at a converging boundary produces a...

• mid-ocean ridge.

• deep-ocean trench.

• rift valley.

• mountain range.

What is continental drift?

• when cars float across the concrete

• When magmas comes in contact with plates

• the hypothesis that the continents slowly move across the Earth’s surface