Plate Tectonics

Question 1

German Scientist that studied plate tectonics and the continental drift theory

Answer 1

Alfred Wegener

Question 2

Supercontinent of all the continents

Answer 2

Pangea

Question 3

Theory that continents are in constant motion on Earth’ surface

Answer 3

Continental Drift

Question 4

four evidences of Continental Drift

Answer 4

Similar rocks on different continents
Coastlines lined up like a puzzle
Same fossils found on different continents
glacial grooves

Question 5

Name six facts about Alfred Wegener

Answer 5

Died in 1930
Born in Berlin 1880
Fifth of five children
Father was a minister
Parents ran orphanage up to 15 orphans
Loved to read
Meteorologist
Astronomer
Geo-physicist
Studied climates
Four polar expeditions
First man in world to use kites and balloons to study weather
In 1906 his brother kurt and him set a world record for balloon flight of 52 and 1/2 hour
Two days and four and a half hours
Went on first expedition to greenland in 1908
No one believed his theories at first

Question 6

The longest chain of mountains on Earth.

Answer 6

Mid-Ocean Ridge

Question 7

Worlds longest ridge, running the length of the Atlantic Ocean, because the north and south american plates are divergent moves from Eurasian and African plates.

Answer 7

Mid-Atlantic Ridge

Question 8

A deep valley formed under water as tectonic plates move apart. Red Sea was formed this way.

Answer 8

Rift Valleys

Question 9

Heated rocks rise in columns from the mantle. Volcanoes usually develop above the plumes at the surface of a tectonic plate. Volcanoes may rise high enough above the sea to form islands. Hawaii islands formed this way.

Answer 9

Hot Spots

Question 10

When the North Pole magnetic field changes with the South Poles magnetic field. 4-5 reversals every million years.

Answer 10

Magnetic Reversal

Question 11

When a plate descends into earth along a convergent plate boundary.

Answer 11

Subduction

Question 12

Layers of the Earth

Answer 12

Inner Core
Outer Core
Mantle
Asthenosphere
Lithosphere

Question 13

Large slabs of rock that fit together like a puzzle. Make up the surface of the earth.

Answer 13

Tectonic Plates

Question 14

The hot soft rock rises, cools, at the top of the cycle and sinks, then is heated again and rises, a motion that transfers heat in a material. Very slow process.

Answer 14

Convection Current

Question 15

Wegener observed the similarities of coastlines between continents that were separated by _____.

Answer 15

oceans

Question 16

Fossils of plants and animals that lived in wet, warm climates are in areas that now have _________ climates.

Answer 16

cold

Question 17

Wegener suggested that these continents were covered by a large sheets of ________.

Answer 17

ice

Question 18

Wegener proposed that certain continents-including South america and Australia-were closer to the _________ pole 250 million years ago.

Answer 18

south pole

Question 19

What is on continents that currently have warm climates show that these continents once had cold climates.

Answer 19

glacial grooves

Question 20

Evidence of continental drift also includes __________ on different continents that have similar or identical chemistry, geologic structure, and age.

Answer 20

mountains (i think)

Question 21

Additional evidence to prove Wegener’s hypothesis existed on the _______ between the drifting continents.

Answer 21

seafloor

Question 22

Coal beds in Antarctica suggest that the continent once had a warm climate. TRUE or FALSE

Answer 22

true

Question 23

molten rock cools and becomes _________

Answer 23

basalt

Question 24

Magnetic stripes on either side of the ridge is parallel on the same sides TRUE OR FALSE

Answer 24

true

Question 25

______________ are mountain ranges in the oceans, where the crust is young and there is almost no sediment.

Answer 25

mid ocean ridges

Question 26

Ocean-Ocean

Answer 26

the collision of the tectonic plates and the seafloor spreads

Question 27

Ocean-Continent

Answer 27

line of volcanoes and it forms volcanoes

Question 28

Continent-Continent

Answer 28

when two plates collide and it forms mountains

Question 29

what type of plate occurs between the north American Plate and the Eurasian Plate

Answer 29

divergent

Question 30

What does coal beds have to do with Antarctica. What's their significance

Answer 30

Coal is remains from dead animals. There is no way the fossils found in Antarctica could have lived in such cold weather. This shows us that not only have the continents moved but the Earth weather has also changed.

Question 31

What did early mapmakers find

Answer 31

They found that fossils of exactly the same plants and animals were located on continents that are separated by thousands of miles of oceans

Question 32

Sediment forms on top of the oldest oceanic crust creating a smooth seafloor named what?

Answer 32

abyssal

Question 33

When new oceanic crust forms along the mid-ocean ridge OLDER crust moves away from the ridge TRUE OR FALSE

Answer 33

true

Question 34

Norman Polarity is when a magnet points North and Reverse Polarity is when it points South TRUE OR FALSE this is known as what

Answer 34

true, magnetic reversal

Question 35

What is subduction

Answer 35

when plates collide and the plates that are denser slides under less-dense plate

Question 36

Convergent Plate Boundary

Answer 36

push together

Question 37

Divergent Plate Boundary

Answer 37

move apart

Question 38

Transform Plate Boundary

Answer 38

rub/scrape

Question 39

What material is something that is capable of changing its shape without breaking

Answer 39

plastic

Question 40

mountain ranges and rocks share common origins TRUE OR FALSE

Answer 40

true