What is the thinnest layer of the Earth, ranging from 5-40 km thick?

Which type of crust is thicker and made mostly of granite?

The land under the ocean, which is thinner and made of basalt, is called the ________.

True or False: The Earth's crust is made of solid rock and is where we live.

In the diagram, which layer is located directly below the lithosphere?

What is the thickest layer of the Earth?

The mantle is made up of the Lithosphere (solid rock) and the ________ (soft solid/thick liquid).

What type of rock is found in the mantle?

Heat rising and falling inside the mantle creates ________ currents generated by radioactive decay in the Earth's core.

What causes the movement of tectonic plates according to the diagram titled 'Convection Currents'?

The convection currents in the mantle are generated by radioactive decay in the Earth's core.

Which layer do tectonic plates float on according to the diagram?

What is the state of the metal in the Earth's outer core?

What elements are mostly found in the liquid metal of the Earth's outer core?

What does the Earth's outer core create?

The heat, pressure, and density in the Earth's outer core is (high/low).

How thick is the Earth's outer core?

What does the Earth's outer core surround?

Which part of the Earth is responsible for creating this magnetic field?

Where does the energy in the Earth's inner core come from?

The Earth's inner core is a _________.

What is the Earth's inner core described as?

The pressure in the inner core squeezes the atoms of iron and nickel so much they cannot ________ and become liquid.

How hot is the Earth's inner core?

The Earth's inner core is about ________ km thick.

Pressure: Increases with depth. Fill in the blank: As we go deeper, pressure ________.

Fill in the blank: The increase in pressure with depth is like stacking more and more ________.

Fill in the blank: The pressure is ________ at the center.

Temperature: Gets hotter as we go deeper. As we go deeper, the temperature ________.

Where does the heat inside the Earth come from?

As we go deeper, materials become more ________.

Density: Heaviest materials sink toward. Fill in the blank: The heaviest materials sink toward the ________.

Fill in the blank: The lightest materials float near the ________.

What happens to pressure and density as you go deeper underwater?

Fill in the blank: The crust is like the skin of an apple - very _____ compared to the whole Earth.

If Earth were the size of a basketball, the crust would be as thin as a piece of _____.

The mantle moves only a few inches per year.

Fill in the blank: The inner core spins slightly _____ than the rest of Earth.

Fill in the blank: Temperature at the center is about as hot as the surface of the _____.

Why are convection currents crucial for the Earth?

What do convection currents drive that affects the Earth's surface?

What is formed when magma cools deep inside the Earth's crust?

What layer of the Earth is moved by convection currents driven by heat transfer from the core?

What is the thickest layer of the Earth?

Which layer of the Earth is liquid Iron and Nickle?