The Crust
This is the outermost layer of the planet, spanning from mountain tops to the ocean floor.
What is the crust?
The mantle is described as having this type of texture, allowing it to flow and move the plates.
What is asphalt-like or plastic?
Unlike the inner core, the outer core is in this state of matter.
What is liquid?
Scientists use these to study the lower layers of the Earth since they are unreachable.
What are waves?
The two main types of rock that make up the crust.
What are granite and basalt?
These types of "currents" in the mantle are responsible for slowly moving Earth's crust.
What are Convection currents?
The two primary metals found in both the inner and outer core.
What are Iron and Nickel?
As you go deeper into the Earth, these two physical properties both increase.
What are Temperature and Density?
This type of crust is described as being thinner, younger, and made of basalt.
What is Oceanic Crust?
This specific part of the mantle is where convection currents occur.
What is the Asthenosphere?
Scientists believe the movement of iron in the outer core creates this protective force around Earth.
What is the Magnetic Field?
The total number of main layers Earth is composed of.
What is four?
This specific layer includes the crust and the very top of the mantle, forming rigid plates.
What is the Lithosphere?
The approximate thickness of the mantle layer.
What is 2,900 km?
The inner core remains a solid ball despite being the hottest part of the Earth; this is its thickness.
What is 1,250 km?
The thickness range of the Earth's crust.
What is 5–50 km?