Spheres of the Earth
How many spheres or systems are there on Earth?
Four
The theory of continental drift proposed that the continents were once joined together in a supercontinent called what? .
Pangea
How many major tectonic plates comprise Earth's lithosphere?
Seven
Define mountain.
A mountain is an area of land rising abruptly from the land around it.
What term refers to hot springs on the ocean floor?
Hydrothermal Vents
True or False. Mountains are part of the lithosphere.
True
True or False. Deep Ocean trenches support the theory of continental drift.
False.
Name the three main types of tectonic plate bounaries.
Convergent, Divergent, Transform
What type of mountains are the highest mountains on earth?
Fold Mountains
Define mid-ocean ridges.
Continuous mountain ranges on the ocean floor that are formed by chains of volcanoes.
True or False. Gases like the oxygen we breathe are part of the hydrosphere.
False. Gases are part of the atmosphere.
True or False. Ice age deposits support the theory of continental drift.
True
What type of plate boundary occurs when two tectonic plates are sliding past each other in opposite directions?
Transform
True or False. Volcanic mountains form from magma at subduction zones, divergent plate boundaries, and hot spots.
True.
Name the two people that published a complete map of the ocean floor.
Marie Tharp and Bruce Heezen
Define biosphere.
The biosphere is comprised of all the living organisms that live on Earth.
What was the name of the scientist that proposed the theory of continental drift in 1915?
Alfred Wegener
Name one feature that occurs when two plates collide at a convergent plate boundary.
Mountains, Deep-Ocean Trenches, Rift Valleys
What is the difference between a volcanic and dome mountains?
When dome mountains are formed, the magma never reaches the surface of the earth. When volcanic mountains are formed, it does.
The depth of the Mariana Trench is greater than the height of what famous mountain?
Mount Everest
Name one way that we can act as good stewards of the earth.
Many answers are acceptable: recycling, crop rotation, reducing packaging.
True or False. Most geologists during agreed with the theory of continental drift in 1915.
False
What is formed along the ocean seafloor when one tectonic plate subducts beneath another plate?
Name two volcanic mountains.
Mt. Ranier (Subduction)
Mt. Fuji (Subduction)
Mid-Atlantic Ridge (Divergent)
Hawaiian Islands (Hotspot)
What theory states new oceanic crust forms at the mid-ocean ridges and then slowly moves away from the ridge crest?
Daily Double: Name the scientist that proposed this theory.
Seafloor Spreading
Daily Double: Harry Hess