Steno and the Shark

Who was Nicholas Steno?

• • A fisherman

• • A Danish scientist

• • A geologist from America

• • An Italian painter

Scientist who theorized that "tongue stones" look like shark teeth, because they are actually shark teeth that have fossilized over time.

• Hooke

• Linnaeus

• Steno

• Fredricks

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NGSS.MS-LS4-1

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What did Nicolas Steno's theorized that "tonguestones" were?

• pieces of asteroids

• fossilized shark teeth

• volcanic rock

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What was Nicholas Steno's contribution to the understanding of fossils?

• He discovered the first dinosaur fossil

• He proposed that fossils were remains of living organisms

• He invented the microscope

• He classified fossils into different species

Which of the following best describes Steno's Law of Superposition?

• Older layers of rock are found above younger layers

• Younger layers of rock are found above older layers

• All layers of rock are the same age

• Rocks are formed in a random order

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What did Steno conclude about 'tongue stones'?

• They were a type of mineral

• They were fossilized shark teeth

• They were a type of gemstone

• They were remnants of ancient plants

How did Steno's work influence the field of geology?

• He developed the theory of plate tectonics

• He laid the foundation for stratigraphy

• He discovered the process of erosion

• He invented the seismograph

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What is the significance of Steno's principle of original horizontality?

• It explains the formation of mountains

• It states that layers of sediment are originally deposited horizontally

• It describes the process of volcanic eruption

• It predicts the occurrence of earthquakes

Which scientific concept did Steno help to establish through his study of shark teeth?

• The theory of evolution

• The concept of extinction

• The principle of fossilization

• The classification of marine species

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NGSS.MS-LS4-1

What was the main focus of Steno's scientific research?

• Astronomy

• Geology and anatomy

• Botany

• Physics

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