10 Questions
Alfred Wegener was a German ______
meteorologist
Harry Hess was an American ______
geologist
Pangaea is a Greek word that means ______
all land
The process of new ocean floor forming between drifting continents is called ______
seafloor spreading
The interval of geologic time that lasted from 251 to 65 million years ago is known as the ______
Mesozoic Era
Alfred Wegener thought that the continents once fit together like pieces of a giant ________
jigsaw puzzle
Wegener suggested that a vast supercontinent, Pangaea, existed until near the end of the ________ Era
Mesozoic
Harry Hess and others suggested that continents move toward each other when the old ocean floor between them ________ back down into the Earth’s interior
sinks
Plate Tectonics comes from the Greek word tekton, which means ________
builder
Harry Hess, an American geologist, in 1960 proposed that as continents drift apart, new ocean floor forms between them by a process named ________ spreading
seafloor
Study Notes
Scientists
- Alfred Wegener was a German geologist.
- Harry Hess was an American geologist.
Pangaea
- Pangaea is a Greek word that means "all-Earth".
- Alfred Wegener thought that the continents once fit together like pieces of a giant jigsaw puzzle.
- Wegener suggested that a vast supercontinent, Pangaea, existed until near the end of the Paleozoic Era.
Continental Drift
- The process of new ocean floor forming between drifting continents is called seafloor spreading.
- Harry Hess and others suggested that continents move toward each other when the old ocean floor between them sinks back down into the Earth’s interior.
Plate Tectonics
- Plate Tectonics comes from the Greek word tekton, which means "builder".
- Harry Hess, an American geologist, in 1960 proposed that as continents drift apart, new ocean floor forms between them by a process named seafloor spreading.
Geologic Time
- The interval of geologic time that lasted from 251 to 65 million years ago is known as the Mesozoic Era.
Explore the concept of plate tectonics and continental drift, as proposed by Alfred Wegener. Learn about the theory of Pangaea and the gradual movement of continents over time. Delve into the contributions of Harry Hess and the evidence supporting the theory of plate tectonics.
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