Plate Tectonics

What forms at the divergent boundary? 

• deep-ocean trench
• mid-ocean Ridge
• land ridge
• the Pacific Ocean

Tags

NGSS.MS-ESS2-3

Which of the following supports the theory of seafloor spreading?

• Correlation of rock layers
• Crustal Age
• Magnetic Reversal
• Continuous Mountain Chains

Tags

NGSS.MS-ESS2-3

What causes the crust to move?

• convection
• conduction
• tension
• radiation

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

The entire cycle of heating occurring in the mantle is called

• Convection currents
• Compound currents
• heat currents
•  subcurrents

Tags

NGSS.MS-ESS2-1

When looking at mid ocean ridges the oldest rocks are 

• In the middle
• Found close to the rift zone
• Found far from the mid ocean ridges

Tags

NGSS.HS-ESS1-5

What 3 kinds of evidence were used to prove that the seafloor spread?

• Rock formations, age of rocks, WWII shipwrecks

• Age of rocks, magnetic seafloor stripes, WWII ship logs

• Rock formations, magnetic seafloor stripes, age of rocks

Tags

NGSS.MS-ESS2-3

What technology was used during WWII to detect enemy submarines and produce the first map of the seafloor?

• Sonar
• Radar
• GPS

Tags

NGSS.MS-PS4-2

Process by which new ocean crust forms.

• Seafloor spreading

• Continental drift

• Mid-ocean ridge

• Rift

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Magnetic field that points south.

• Modern polarity
• Past polarity
• Normal polarity
• Reversed polarity

Tags

NGSS.MS-PS2-5

Why were magnetic patterns found on the ocean floor puzzling?

• They showed alternating bands of normal and reversed polarity.
• No rocks were magnetic.
• They did not show alternating bands of normal and reversed polarity.
• All rocks were magnetic.

Tags

NGSS.MS-ESS2-3