Science 5.1 Flashcards
(22 cards)
What is the earth’s temperature at 10km below the surface?
300 degrees celcius
What is the temperature at the earth’s core?
Several thousand degrees
Earth’s internal structure is made up of four major parts, name them
Inner core
Outer core
Mantle
Crust
Describe the earth’s core
The core is at the center of the earth
What is the hottest part of the earth?
The core
What is the earth’s core composed of?
A solid portion (inner core)
A liquid portion (outer core)
Name the two metals that make up the majority of the earth’s core
Iron
Nickel
Where is the mantle?
Between the crust and the core
What is the mantle made of?
Mostly solid rock near the crust
Underneath, the rock is partially melted
Where does magma come from?
The mantle
What is the earth’s crust?
The external part of the earth
What is the earth’s crust made of?
Solid rock
What percentage of the earth total volume does the core account for?
Approximately 17%
What percentage of the earth total volume does the mantle account for?
Approximately 81%
What percentage of the earth total volume does the crust account for?
Approximately 2%
What two types of crust are there?
Continental crust
Oceanic crust
List earth’s 4 spheres
Lithosphere
Hydrosphere
Atmosphere
Biosphere
Which sphere is considered the living organism sphere?
Biosphere
Which sphere is considered the air sphere?
Atmosphere
Which sphere is considered the solid sphere?
Lithosphere
Which sphere is considered the water sphere?
Hydrosphere
List 3 things that are included in the biosphere
Plants
Animals
Bacteria
