Magnetic Reversal Sea Floor Spreading

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

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.MS-ESS2-2

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

• Echo Location

• Radar

• GPS

Undersea mountain range.

• Rift
• Mid-ocean ridge
• seafloor spreading
• Continental drift

Tags

NGSS.MS-ESS2-3

Process by which new ocean crust forms.

• Seafloor spreading

• Continental drift

• Mid-ocean ridge

• Rift

Tags

NGSS.MS-ESS2-3

Magnetic field that points south.

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

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.HS-ESS1-5

The OLDEST seafloor is located? 

• Closest to the mid-ocean ridge
• Farthest from the mid-ocean ridge

What are Mid-Ocean Ridges?

• A chain of underwater waterfalls 
• A chain of underwater volcanos
• A chain of underwater mountains
• A chain of underwater rocks

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

True or False : Sea-floor Spreading adds new material to the ocean floor?

• True
• False