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 compositional (chemical) layers of earth.
What is crust, mantle, outer core, and inner 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 more dense
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? ? How many daughters? # of Chromosomes?
4 Haploid daughter cells - 23 chromosomes
What is acceleration?
speed up, slow down, change directions
Scientist who proposed the idea of sea floor spreading.
Who is Harry Hess?
Evidence for Continental Drift (3)
Climate change, Fossils, land features, puzzles - coastline
This occurs when an oceanic plate slides under a continental plate because of density.
Subduction.
Mitosis results in what? How many daughter cells? # of chromosomes?
2 Diploid ( daughter) cells - 46 chromosomes
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(reversal of magnetism), shape of rocks(sediments farther away) and age of rock(youngest to oldest).
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.
Describe One of Newtons Laws of motion
1 - object stays at rest or in motion unless acted upon by outside force
2- Force, Mass, and acceleration have a relationship
3 - Every action has equal & opposite reaction
In magnets opposite poles ?
attract
These cause random volcanoes to occur throughout earth, where magma finds cracks and make their way to the surface. Hawaii was created this way.
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 that make a trait?
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