Earth Science #1
These are the two layers of the Earth the S Waves can't travel through.
outer and inner core
These are the three compositional (chemical) layers of earth.
What is crust, mantle, core?
When it only takes one allele to show the trait.
Dominant
What forces is always acting on an object.
Gravity and norm force
The name of the super continent.
What is pangea?
These land features are long mountain ranges on the ocean floor where sea floor spreading occurs.
What is Mid-Ocean Ridges?
As the magma flows close to the inner core this happens to the objects density.
What is decrease?
The different variations of Genes are called what?
Alleles
What is it called when there is no change in motion?
Balanced forces
What land features are created at O-O convergent boundaries?
Island arc & trench
Name of the scientist who proposed continental drift theory.
Alfred Wegner
These are the three types of plate boundaries
Convergent, divergent, transform
Meiosis results in what?
4 Haploid daughter cells
What is acceleration?
speed up, slow down, change directions
Scientist who proposed the idea of sea floor spreading.
Who is Harry Hess?
This is the name of the current that moves magma in the mantle.
Convection Current
This occurs when an oceanic plate slides under a continental plate because of density.
Subduction.
Mitosis results in what?
2 Diploid ( daughter) cells
An object in motion can have a net force of zero? T or F
True - if it is moving at a constant speed in the same direction.
What is the net force of a balanced object?
0 N (Newtons)
These are the three main pieces of evidence to support sea-floor spreading.
Poles Reversing, pillow lava and age of rock.
Why do we have layers of the Earth?
Differentiation - Different densities and gravity
What do we call the physical features you see? (like brown eyes)
Phenotype.
A box is moving 30N to right and has friction of 10N to left. What is the Net Force
20 N right
In magnets opposite poles ?
attract
These cause random volcanoes to occur througout earth, where magma finds cracks and make thier way to the surface.
Hot Spots.
When an Oceanic and Continental plate collide, what are the two land features that form.
Deep Ocean Trench, Volcanic Mountain Range
What do we call the gene combination?
Genotype.
In order to be in motion the distance between and object and a reference point does NOT have to change. T or F
False
What is the compositional layers in the correct order from most to least dense?
inner core, outer core, mantle, crust