Video Summary: The movie talks about the layers of earth, what they made out of, how deep it is (to get earth core) and how magnetic field helps protect us from solar flares. Another thing they talk about the possibilities about if we lost our Magnetic field what can result from it and how our magnetic field is going down slowly.
Key idea: Magnetic field
Our magnetic field is generated from the earth core (by electrical currents flowing in the liquid outer core deep inside the Earth. Although it’s liquid metal, it moves around through a process called convection. And the movements of metal in the core sets up the currents and magnetic field). The magnetic field helps us by protecting us from solar flares and radiation. The Magnetic field is getting weaker because of earth core is getting weaker. If our Magnetic field is gone it going to lead increase in radiation (going have health effect). The molecules in our atmosphere will be wiped which will lead to other big issues (forgot what it was but i know it will effect everything living here).
Key idea: Earth core layers (crust, mantle, outer core, inner core)
They show the layers of earth which include crust, mantle, outer core, and inner core. The crust is made our of oxygen, silicon, aluminum, iron,, calcium, sodium, potassium and magnesium. Earth mantle is made out rocks containing silicon, rock, magnesium, aluminum, oxygen and other minerals. Outer core consist of iron and nickel (in a liquid state). The inner core composed of nickel-iron alloy.
Key idea: Magnetic field
Our magnetic field is generated from the earth core (by electrical currents flowing in the liquid outer core deep inside the Earth. Although it’s liquid metal, it moves around through a process called convection. And the movements of metal in the core sets up the currents and magnetic field). The magnetic field helps us by protecting us from solar flares and radiation. The Magnetic field is getting weaker because of earth core is getting weaker. If our Magnetic field is gone it going to lead increase in radiation (going have health effect). The molecules in our atmosphere will be wiped which will lead to other big issues (forgot what it was but i know it will effect everything living here).
Key idea: Earth core layers (crust, mantle, outer core, inner core)
They show the layers of earth which include crust, mantle, outer core, and inner core. The crust is made our of oxygen, silicon, aluminum, iron,, calcium, sodium, potassium and magnesium. Earth mantle is made out rocks containing silicon, rock, magnesium, aluminum, oxygen and other minerals. Outer core consist of iron and nickel (in a liquid state). The inner core composed of nickel-iron alloy.