Observations and Inferences
Density
Convection
Earths interior
Layers
100
What are the two types of observations and what's the difference?
Qualitative- deals with your 5 senses Quantitative- deals with numbers
100
The amount of mass per unit volume
What is density?
100
Asthenosphere: crust movement
Durning convection what does the asthenosphere do?
100
Waves traveled in a Curved pattern
What is refraction?
100
Outer core: -controlled by temp - liquid metal zone - magnetic field Inner core: - high temp but even higher pressure - controlled by pressure -solid metal
Define outer core and inner core?
200
Take away the mass
How do you decrease density?
200
Hot tar: thick liquid
What is the material
200
A boundary between the crust and mantle that becomes more dense and speeds up at seismic waves
What is a Moho?
200
Asthenosphere: Semiliquid to balance temp and pressure Convection crust movement Lithosphere: Controlled by pressure Made of two types of crust basalt and continental Floats on top of the asthenosphere
What is lithosphere and asthenosphere?
300
How do you increase density?
Add mass or take away volume
300
Circulate
Heat causes the asthenosphere to?
300
P:back and fourth movement rocks squeezed together and pulled apart as waves pass through, faster than S waves S: up and down movement, can't travel through liquid
Define P and S waves
400
What observation is this? There are three deer.
Qualitative
400
1cm3= 1m
What does 1m= to in cm3 What is
400
Sink
Some matter rises while others?
400
Where P and S waves aren't. And why does this occur? To stop P and S waves
What is a shadow zone?
400
Center layer Most dense Two metals- iron and nickel
Core:
500
How are observations and inferences related?
Because they are both based on observations
500
Objects with a density less than one will float where objects with a density more than 1 with sink
How does density float or sink?
500
Convection
Repeat all this and you have:
500
Speed an density are related to refraction because waves change speeds and there are different density.
How are speed density refraction related?
500
Crust: Outer layer Layer we have contact with Contains basalt and continental
Crust:
M
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