Convection Cycles and Tectonic Plates

Name the area between the two diverging plates in this picture.

• transform boundary

• ocean trench

• rift valley

• subduction zone

Identify natural land feature that are formed at a convergent boundary.

• Appalachian Mountains

• Africa’s Rift Valley

• San Madrid Fault

• Florida Keys

Plate boundaries behave in different ways, depending on the location and their motion. Identify the possible outcomes for a divergent boundary.

• rift valley and mid-ocean ridge

• deep ocean trenches and earthquakes

• mountain building and subduction

• volcanoes and seamounts

The interactions at plate boundaries cause huge changes on both the land and the ocean floor. What are the mountains results from the type of plate boundary?

• divergent

• convergent

• transform

• strike-slip fault

What is the correct definition of a tectonic plate boundary?

• At a divergent boundary, plates separate.

• At a transform boundary, plates move apart.

• At a convergent boundary, plates slide past each other.

• At a divergent boundary, one plate sinks under another plate.

What happens at a transform tectonic plate boundary?

• Two tectonic plates move horizontally past one another along Earth’s surface, forming long fault lines.

• Two tectonic plates pull away from one another, forming a rift or ridge.

• Two tectonic plates pull away from one another, decreasing rock deformation.

• Two tectonic plates collide with one another, causing subduction and/or mountain building.

Identify the process that causes tectonic plates to move?

• Conduction in the inner core

• Convection in the inner core

• Convection in the mantle

• Conduction in the mantle

Tags

NGSS.MS-ESS2-3

What describes the pot of water on a hot stove of the convection cycles that heat up the water?

• warmer, more dense fluid rises and cooler, less dense fluid sinks

• warmer, more dense fluid sinks and cooler, less dense fluid rises

• warmer, less dense fluid rises and cooler, more dense fluid sinks

• warmer, less dense fluid sinks and cooler, more dense fluid rises

Between mountain building, volcanoes, and earthquakes. What's there relationship?

• They mostly occur in the oceans and in the center of plates at land boundaries because of convection currents.

• They mostly occur at plate boundaries and are generated from eruptions that occur on land due to convection currents.

• They mostly occur in the oceans and change the sea floor by spreading apart to make new rock.

• They mostly occur at plate boundaries and are generated by plate motions from convection currents.

What is a convection current?

• the transfer of energy by direct contact

• the transfer of energy by the movement of matter

• the transfer of energy through a solid, such as the Earth’s crust

• the transfer of energy from a region of lower temperature to a region of higher temperature