Earth
How many layers are in Earth and name them from inner layer to outer layer
What is ---------5
Inner core, outer core, lower mantle, upper mantle and crust
Which of the following is a TRUE statement:
1) All plate boundaries have earthquakes and volcanoes
2) Some plate boundaries only have earthquakes and some only have volcanoes
What is 2--
Some plate boundaries have only earthquakes or volcanoes not both
Make the following a true statement
Tectonic plates move rapidly
What is--
Tectonic plates move slowly
Make the following a true statement:
The continents have always been divided into different land masses
What is--the continents were once all connected into one land mass
What is a Ridge?
What is-- a bunch of underwater volcanoes
What are the two main geo-processes that occur on the boundary of plates (especially when they collide or rub against each other)?
What are Volcanoes and Earthquakes--sometimes even Tsuanmi's
Make a true statement out of the following statement
The tectonic plates are loose and don't fit together
What is ---the tectonic plates all fit together like a puzzle
Is this a true statement --if not make it a true statement
All continents have lots of Volcanoes on the boundaries.
What is --No there are several continents that don't have nay or very few volcanoes (like Russia and Australia)
What was the name of the man who came up with the idea of Continental Drift (the movement of pangea)
Who was---
Wegener
Make the following a true statement:
The Seafloor is never new seafloor
What is-- the Seafloor creates new seafloors at each ridge
Is it true that the Crust and the Plates are the same thing?
What is no--the Earth crust and plates are different the plates are rock that floats on top of the Crust
How do plates move in a CONVERGENT boundary?
How do plates move in a DIVERGENT boundary?
What is--the plates collide or converge together is CONVERGENT
The plates separate or diverge apart in DIVERGENT boundaries.
Write a true statement for the following example:
Volcanoes only occur on continental plates
What is--
Volcanoes occur on both continental and oceanic plates
What is the main idea of Pangea?
That all the continents were connected and then separated over many years to form the continents we have now.
Does the Ring of Fire have few or many ridges? Explain
What is--yes, the Ring of Fire has many ridges so has lots of new seafloors forming
What causes the plates to move?
What are convection currents
How a Tsunami is formed--make sure you use the correct boundary vocabulary
What is --a convergent boundary happens where the OCEANIC plate goes UNDER the CONTINENTAL plate causing the water to rise up as a wave
Are the Tectonic plates are all the same size that cover earth?
What is NO--the tectonic plates are large and small
What are two things that can be used as EVIDENCE for Pangea?
What is--
Fossils of animal species found on different continents
Convection currents causes motion of plates
Explain how a new seafloor is formed from mantle to old seafloor
The convection currents in the mantle moves the plates creating ridges underwater. The ridges open and lava flows out creating NEW seafloors, pushing OLDER seafloors out away from the ridges
Explain all of the pieces of Convection Currents --make sure you include dense, less dense, hot, cold, molecules and heat source and high versus low pressure
What is--When molecules heat up they spread out and rise leaving behind an area of low pressure. When away from the heat source the molecules become more dense and sink creating high pressure--high pressure always wants to go to low pressure and hot always wants to go to cold creating currents
Explain the differences between the OCEANIC crust and the CONTINENTAL crust
What is--the oceanic crust is thin and lighter, where the continental crust is heavier and thick
How many plates are there that cover the Earth--and name the largest plate
Acceptable answer--
Anything over 10 as some of the plates are still being debated
Largest Plate: Eurasian or North American Plates
How do we know using animals that the continents had to be all together at one time
Animal species adapted and changed due being in a different environment than their original species
so ADAPTATIONS
Do you know where a part of the seafloor is located? Hint --it is not on Earth
What is --The moon
Scientists have compared rocks from the moon and the seafloor and have discovered that our moon was once on the oceans floor!