Earth Surface
These are topographic features formed by processes that shape Earth's surface
What are landforms?
This force caused materials from a cloud of gas and dust to form planets, including Earth.
What is gravity?
This liquid outer layer of Earth's core generates Earth's magnetic field.
What is the outer core?
This brittle, rocky outer layer of Earth is compared to the shell of an egg.
What is the crust?
These images taken by this type of equipment show that Earth is not a perfect sphere.
What are satellites?
The height of land above sea level is referred to as this.
What is elevation?
The solar system, including Earth, formed from this type of cloud.
What is a nebula?
This layer of Earth is composed of the lithosphere and asthenosphere.
What is the mantle?
The layer below the crust, which is much thicker, is called this.
What is the mantle?
Earth is shaped like a slightly flattened ball, with this bulge.
What is the bulge at the equator?
This term refers to landforms with low relief and low elevation.
What are plains?
This is the reason why denser materials sank to Earth's center while less dense materials stayed on the surface.
What is the difference in density?
These are the three main layers of Earth.
What are the crust, mantle, and core?
Scientists study Earth's interior by analyzing these, which are created by earthquakes.
What are seismic waves?
This imaginary line divides Earth into the Northern and Southern Hemispheres.
What is the equator?
This is the difference in elevation between the highest and lowest points in a given area.
What is relief?
This force pulled surface bumps towards Earth's center, making Earth more spherical.
What is gravity?
This part of the mantle has rocks so hot that they are melted into liquid.
What is the asthenosphere?
This part of Earth is the dense, metallic center.
What is the core?
Earth's gravity pulls all objects towards this part of the planet.
What is the center?
This famous plateau in the southwestern United States features the Grand Canyon.
What is the Colorado Plateau?
These materials moved and formed Earth's layers due to their ability to flow when heated.
What are molten materials?
The hottest and innermost part of Earth that spins faster than the rest of the planet is called this.
What is the inner core?
The innermost layer of Earth is solid and is made mostly of iron crystals.
What is the inner core?
This term refers to a perfectly round shape where every point on the surface is the same distance from the center.
What is a sphere?