Plate Tectonics

What are tectonic plates?

• slabs of Earth's crust (or lithosphere) that move over the mantle (or asthenosphere)

• plates made of delicate porcelain clay found deep within the Earth's core

• when you technically leave sandwich crust on your plate, but feed it to the dog when no one is looking

Tags

NGSS.MS-ESS2-3

What causes the tectonic plates to move?

• uneven heating due to convection currents cause warm magma to rise and cool within the mantle

• earthquakes and volcanoes

• infrared rays of energy cause more dense rock to rise and less dense rock to sink.

Tags

NGSS.MS-ESS2-3

True/False. Hot magma within Earth is less dense and will rise, while cooler magma becomes more dense and sinks.

• True

• False

Tags

NGSS.MS-ESS2-1

What are the 3 main types of plate boundaries?

• small, medium, and large

• subduction, convection, and divergent

• convergent, divergent, and transform

What are the 3 main types of plate boundaries?

• Convergent, Divergent, Transfer

• Convection, Divergent, Transform

• Convergent, Divergent, Transform

• Convection, Divergent, Transfer

Which is the only boundary that does NOT involve magma?

• divergent

• convergent

• transform

A convergent boundary can form a mountain chain or a ____________.

• Earthquake

• Rift Valley

• Sea-floor trench

• Mid-ocean ridge

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Based on what you've learned about plate tectonics, which statement would you consider to be accurate in comparing the 2 maps?

• Most of the world’s volcanoes and earthquakes are located along the edges of continents and ocean basins and along island chains. It is likely evidence that these movements are related to the movement found at tectonic plates boundaries.

• Earthquakes and Volcanoes are very different processes and do not have much to do with how the land is changed, or the tectonic plates.

• The map on the left shows where tectonic plates are, and the map on the right shows the ancient civilizations that settled there.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

California is home to the San Andreas fault, a well-known __________ boundary, where plates slide past each other.

• convergent

• divergent

• transform

Which diagram best shows the movement of tectonic plates at a CONVERGENT boundary?

• 
• 
• 
• 

Tags

NGSS.MS-ESS2-3