Section 1
Name of the large landmass that scientists believe existed 200 million years ago
Pangaea
Harry Hess
What is the top layer of Earth labeled as..
mantle core crust
crust
What is the deepest part of Earth's oceans called?
Mariana Trench
Which small plate is located to the west of the North American plate?
One of the points of evidence for continental drift was the __________ fit of the continents of Africa and South America
puzzle like
The _________ rock is found near mid-ocean ridges
oldest strongest youngest
youngest
A plate boundary where the two plates move away from each other or pull apart
divergent
Which of the following plates IS near the Mid-Atlantic Ridge?
Indo-Australian Nazca Eurasian
Eurasian
TRUE-FALSE
Scientists have found tropical plant fossils in cold regions of Earth, supporting the idea that those places were once near the equator
TRUE
Which technology was used to detect the map of the ocean floor in the 1940's?
sonar or sound waves
A plate boundary in which the two plates move together or under one another
convergent
How deep is the Mariana Trench? (roughly)
3 miles 25,000 feet 7 miles
7 miles
Which plate is located near the Gulf of Mexico to the south of North America?
Caribbean Plate
When the scientists proposed the theory of continental drift in the 1900's, all scientists supported his claim
FALSE
Which ocean ridge is between the continents of Europe and North America?
Mid-Atlantic Ridge
A plate boundary in which the plates slide past one another, usually the location of earthquake fault lines
What kind of "zone" is located at the trench?
Which two plates collide at a subduction zone to form the Andes Mountains?
Name of the scientists that proposed the theory of continental drift
Alfred Wegener
TRUE - FALSE
Scientists have found out that Earth's magnetic field reverses every 200,000 years or so
TRUE
The TOP layer of Earth's crust is called the _________
lithosphere
What was the name of the manned vessel that reached the bottom of the deepest trench in 1961?
Which two plates collide to form the Himalayan Mountains?
Eurasian and Indo-Australian