What is the outer core believed to be made up of quizlet?

What is the outer core believed to be made up of quizlet?

Outer Core: The Earth’s outer core is made up of iron and nickel and is very hot (4400 to 5000+ degrees C). This is so hot that the iron and nickel metals are liquid! The outer core is very important to earth as it creates something called a magnetic field.

What are the two main elements of the outer core?

The outer core is about 1,400 miles thick, and it’s made mostly of a combination (called an alloy) of iron and nickel, along with small amounts of other dense elements like gold, platinum, and uranium. These metals can, of course, be found on the surface of Earth in solid form.

What is Earth’s thinnest layer?

the crust
Discuss with the whole class what the relative thicknesses of the layers are — that the inner core and outer core together form the thickest layer of the Earth and that the crust is by far the thinnest layer.

Why is Earth’s outer core liquid quizlet?

Outer core – It is liquid because the temperature is high and there is not enough pressure to make it solid. Mantle – Since the pressure is too high for true liquids to form and the temperature is also high, the mantle has a plastic and solid texture.

What are 5 facts about the outer core?

The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth’s magnetic field. As Earth spins on its axis, the iron inside the liquid outer core moves around.

Why the inner core is solid while the outer core is liquid?

Earth´s inner core and outer core are both made of an iron-nickel alloy. As you go deeper in the Earth both temperature and pressure increases. Although the inner core is very hot, it is solid because it is experiencing very high pressure. The pressure in the outer core is not high enough to make it solid.

Why is the outer core the only layer in Earth that is molten group of answer choices?

Earth’s Outer Core The outer core is the liquid largely iron layer of the earth that lies below the mantle. Geologists have confirmed that the outer core is liquid due to seismic surveys of Earth’s interior.

How can you describe the outer core?

Earth’s outer core is a fluid layer about 2,400 km (1,500 mi) thick and composed of mostly iron and nickel that lies above Earth’s solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth’s surface. Unlike the inner (or solid) core, the outer core is liquid.

What separates the inner core from the outer core?

The main difference between the inner core and outer core of the earth is that inner core of the earth is the innermost layer of our planet, whereas outer core is the layer that surrounds the inner core . Inner Core v s. Outer Core Our earth is composed of four layers, i.e., the crust, mantle, outer core, and the inner core.

What does an outer core do to the Earth?

The outer core is responsible for Earth’s magnetic field . As Earth spins on its axis, the iron inside the liquid outer core moves around. The movement causes powerful electric currents to develop in the liquid iron itself. These powerful currents cause lines of invisible force to stretch around the Earth and thousands of miles into space, creating a magnetic field.

How is the inner core similar to the outer core?

The inner core and the outer core are made up of similar stuff chemically (both are made mostly of iron, with a little nickel and some other chemical elements)–the difference between them is that the outer core is liquid and the inner core is solid. As you get deeper inside the Earth, both the temperature and the pressure…

What type of rock is found in the outer core?

The Outer Core is composed of iron and some nickel. There is very few rocks and iron and nickel ore left in the Outer Core because of the Inner Core melting all the metal into liquid magma.