Alfred Wegner
Drifting Continents
Sea-Floor Spreading
Convection Currents and the Mantle``
Random Thoughts
100
What did Wegner notice about the coastlines of Africa and South America
What is they could fit together, he noticed that the geological formations matched up, also noticed that the animal fossils and the same plants that were found on the coasts of theses two continents, were very similar.
100
Any trace of an ancient organism that has that has been preserved in a rock is called a_______
What is fossil
100
What technology did scientists use in the mid 1900's to map the mid ocean ridge?
What is sonar
100
Heat transfer within a fluid takes place by _____
What is convection current
100
Who is the Earth science teacher?
What is Mr. Pascarella
200
Why didn't anyone beleive Wegner about his theory?
What is he wasn't a scientist, he couldn't back up his information.
200
According to Wegners hypothesis of continental drift, the _____ were once joined together in a single landmass.
What is continents
200
How did scientists discover that rocks farther away from the mid ocean were older than those near it? by determining the age of _____ samples obtained by drilling on the sea floor
What is rock
200
The transfer of energy through empty space is called _________.
What is radiation
200
Name at least two things that would happen when plates move
What is nothing, volcano eruption, tsunami, earthquake
300
When was his theory finally excepted?
What is in the 1960's
300
Which type of evidence was not used by Alfred Wegner to support his continental drift hypothesis? evidence from...A) landforms B) fossils C)human remains D) climate
What is C, human remains
300
The process by which the ocean floor sinks beneath a deep ocean trench and back into the mantle is known as ______.
What is subduction
300
When you touch a hot pot or pan, energy moves from the pot to your hand. This is called ____________ _____________.
What is heat transfer
300
In the movie "The Wave That Shook the World" where did the tsunami form?
What is off the Sumatran Coast
400
When was he born?
What is November 1, 1880
400
Pangea was a _______ that existed millions of years ago
What is a super continent
400
What did scientists in a submersible see when they observed the mid-ocean ridge? rocks formed by the eruption of _____ material from Earth's mantle.
What is molten
400
When the heat source is removed from a fluid, convection currents in the fluid will __________.
What is eventually stop
400
In the movie "The Wave That Shook the World" how did the tsunami start?
What is a plate was going under another plate and then the upper plate snapped up and created a tsunami
500
When did he die?
What is November 2 or 3, 1930.
500
Most geologists rejected Wegners idea of continental drift because wegner could not identify a _______ that could move the continents
What is force
500
In the process of sea floor spreading, where does molten material rise from the mantle and erupt? along the _____
What is the mid-ocean ridge
500
Scientists think that convection currents flow in Earth's _________.
What is the lithosphere
500
How can you detect a tsunami?
What is a seismograph
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