Study sets, textbooks, questions
Upgrade to remove ads
Science Chapter 5
Terms in this set (51)
Scientists believe that differences in ____ cause hot, plasticlike rock in the asthenosphere to rise toward Earth's surface.
The asthenosphere is the solid layer of rock below the lithosphere.
Evidence shows that the rock furtherest from the mid ocean ridge is actually younger than the rock closest to the mid ocean ridge.
Harry Hess proposed the theory of Contential Drift.
The word Pangaea means "New Land"
Wegener believed that the continents originally broke apart about ____ years ago.
While studying the ocean floor, scientists found ____ bands of magnetism.
Wegner's idea of continental drift was not an accepted theory when it was first proposed.
The hypothesis that continents have slowly moved to their current locations is called ____.
The crust and upper mantle make up Earth's ____.
Seafloor spreading occurs because ____.
molten material beneath Earth's crust rises to the surface
Active volcanoes are most likely to form at ____.
convergent oceanic-continental boundaries
According to Figure 10-1, what type of plate boundary occurs between the North American Plate and the Eurasian Plate?
Plates slide past one another at ____.
____ currents inside Earth might drive plate motion.
A ____ is a sensitive device used to detect magnetic fields on the seafloor.
A magnotometer is a device used to detect magnetic fields.
The boundary between two plates where the plates are moving apart is known as a convergent boundary.
Plates of the lithosphere float on the ____.
The crust and the outer core make up the lithosphere.
The alignment of iron minerals in rocks when they are formed reflects the fact that Earth's ____ has reversed itself several times in the past.
The boundary between two plates where they are sliding past one another is called a divergent boundary.
The sections that the crust and upper mantle are broken ito are called plates.
The Glomar Challenger provided support for the theory of plate tectonics by providing ____.
samples of older rock found far from mid-ocean ridges
A ____ forms where two oceanic plates collide.
The Andes mountain range of South America was formed at a ____.
The youngest rocks on the ocean floor are located ____.
at mid-ocean ridges
Bands of rock on the seafloor showing alternating magnetic orientation indicate Earth's magnetic field has ____.
reversed itself in the past
The boundary between two plates moving together is called a ____.
According to the theory of plate tectonics the crust and upper mantle are broken into sections.
A fossil plant that helps support the theory of continental drift is ____.
The mapping of the ocean floor led to the discovery of mid-ocean ridges.
During World War II, German scientist developed a method of using sound waves to detect submarines.
The presence of the same ____ on several continents supports the hypothesis of continental drift.
both a and b
Plates move apart at ____ boundaries.
A lack of explanation for continental drift prevented many scientists from accepting that a single supercontinent called ____ once existed.
Harry Hess proposed the theory of sea floor spreading.
Continental drift states that continents have moved ____ to their current location.
The result of plate movement can be seen at ____.
Scientists have observed that the plates move at rates ranging from 1 cm to 12 cm per ____.
According to Figure 10-1, what type of plate boundary occurs between the Nazca Plate and the South American Plate?
convergent oceanic-continental plate boundary
Matching ____ on different continents are evidence for continental drift.
The Great Rift Valley in Africa is a ____.
In order to complete a convection current, the rising material must eventually ____ Earth.
sink back into
Wegner used clues from fossils, rocks, and the climate to suppoert his theory of continental drift.
The boundary btween two plates where the plates are coming together is known as a transform boundary.
The ____ is (are) an example of a transform boundary.
San Andreas Fault
The entire cycle of heating, rising, cooling, and sinking is known as a convection current.
Magnetic clues in the sea floor rock indicated that the Earth's magnetic polarity has reversed many times in the past.
____ are formed when two continental plates collide.
The ____ are mountains formed by the collision of the Indo-Australian Plate and the Eurasian Plate.
Sets with similar terms
science plate techtonics
Science Chapter 7
Science Chapter 7 test
Other sets by this creator
Psych 101 chapter 2
Psych 101 chapter 1
Unit 2 Vocab
Unit 1 Vocab - English 4
Waves change direction as they near shore because _______________.
Metamorphic rocks that have a banded appearance due to the alignment of minerals are called a. foliated. c. elastic. b . nonfoliated. d. glassy
Choose the letter of the best answer. The relatively soft layer of the upper mantle is the a. asthenosphere. b. lithosphere. c. inner core. d. continental crust.
On the world map, identify each of the major ocean currents listed below. Refer to a wall map, a map in your textbook, or an atlas that depicts surface currents. Warm currents are shown with red arrows and cold currents with blue arrows. 1. Equatorial. 2. Gulf Stream. 3. California. 4. Canary. 5. Brazil. 6. Benguela. 7. Kuroshio (Japan). 8. Agulhas. 9. Labrador. 10. North Atlantic. 11. North Pacific. 12. Peru. 13. West Australian. 14. East Australian. 15. West Wind Drift (Antarctic Circumpolar). What is the name of the surface-ocean current located along the Pacific coast of the United States? Is it a warm or cold current? Name of current: ____. This current is a ____ current.
Recommended textbook solutions
Prentice Hall Brief Review: The Living Environment 2019
John Bartsch, Mary P Colvard
Life on an Ocean Planet
Michael E Huber, Peter Castro
Earth Science, Florida Edition
Arthur T. DeGaetano, Jay M. Pasachoff, Mead A. Allison
Other Quizlet sets
Chapter 17 (environmental science)
Astronomy Exam 2
SFL Exam 2
Your new best friend and you are on a vacation when you notice you are walking on a large sandbar connecting an island to the mainland. "Oh" you suddenly realize," "we must be on..."
Who was the professor and WW2 veteran who compiled evidence for Seafloor Spreading (hypothesis), which was a crucial step in the development of the Theory of Plate Tectonics?
Which event occurs more rapidly: earth flow or a debris flow?
Which is the BEST explanation why the remains of a small reptile living millions of years ago have been found only in Brazil and South Africa?