Seafloor Mapping and Plate Tectonics Quiz

Echo sounder

Thermometer

Barometer

Seismograph

Relating to the shape of the land

Measuring temperature

Studying animal life

Relating to ocean currents

Mid-ocean ridges are much longer than any mountain range on land.

The seafloor is completely flat.

Volcanic activity occurs only on land.

Ocean trenches are higher than mountains.

To measure the depths of the ocean floor

To catch fish

To detect earthquakes

To study weather patterns

Because the seafloor is too deep to observe directly

Because the seafloor is always visible from ships

Because the seafloor is flat and easy to see

Because the echo sounder is used to catch fish

Stripes of different ages parallel to mid-ocean ridges

Circles of old crust around volcanoes

Random patches of young and old crust

Zigzag lines across the seafloor

Two things that are the same distance apart along their whole length

Two things that cross each other

Two things that are close together

Two things that are moving in opposite directions

Continents move as the seafloor spreads along a mid-ocean ridge

Continents move through the solid mantle

Continents float on the ocean water

Continents do not move at all

Pacific Plate

African Plate

Eurasian Plate

North American Plate

Juan de Fuca Plate

Scotia Plate

Caribbean Plate

Cocos Plate