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Questions and Answers
What did scientists start to detect coming from the ocean floor?
What did scientists start to detect coming from the ocean floor?
peculiar magnetic readings
What is the main component of the ocean floor?
What is the main component of the ocean floor?
basalt
What gives basalt its magnetic properties?
What gives basalt its magnetic properties?
magnetic minerals
What did scientists find on the ocean floor that surprised them?
What did scientists find on the ocean floor that surprised them?
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What did scientists discover about the stripes of rock leading away from the mid-ocean ridge?
What did scientists discover about the stripes of rock leading away from the mid-ocean ridge?
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What phenomenon explains the polar reversal phenomenon?
What phenomenon explains the polar reversal phenomenon?
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What happens at the mid-ocean ridge?
What happens at the mid-ocean ridge?
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What is sea floor spreading?
What is sea floor spreading?
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How do scientists determine the earth's magnetic field over time?
How do scientists determine the earth's magnetic field over time?
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What is the Mid-Ocean Ridge?
What is the Mid-Ocean Ridge?
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What technology was used to measure the seafloor depths?
What technology was used to measure the seafloor depths?
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What did the echo-sounding devices reveal about the ocean floor?
What did the echo-sounding devices reveal about the ocean floor?
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What is the name of the underwater mountain range discovered?
What is the name of the underwater mountain range discovered?
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What two mysteries of planet Earth were unlocked by the discovery of the Mid-Ocean Ridge?
What two mysteries of planet Earth were unlocked by the discovery of the Mid-Ocean Ridge?
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What was the common belief about the ocean floor before the discovery of the Mid-Ocean Ridge?
What was the common belief about the ocean floor before the discovery of the Mid-Ocean Ridge?
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What event led to the development of new technology to explore the ocean floor?
What event led to the development of new technology to explore the ocean floor?
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What did scientists use to measure the seafloor depths before the development of echo-sounding devices?
What did scientists use to measure the seafloor depths before the development of echo-sounding devices?
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What were the early submarines in the 1800s not well-suited for?
What were the early submarines in the 1800s not well-suited for?
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What did the discovery of the Mid-Ocean Ridge open the door to understand?
What did the discovery of the Mid-Ocean Ridge open the door to understand?
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What did the echo-sounding devices bounce off of to measure the seafloor depths?
What did the echo-sounding devices bounce off of to measure the seafloor depths?
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