Layers!

Explain the crust! The earth’s crust is the hard outer layer of the earth and is broken into puzzle-like pieces, called the tectonic plates.

• The earth’s crust is the hard outer layer of the earth and is broken into puzzle-like pieces, called the tectonic plates.

• The earth’s crust is the soft inner layer of the earth and is not broken into pieces.

• The earth’s crust is the hard outer layer of the earth and is a single solid piece.

• The earth’s crust is the soft outer layer of the earth and is broken into puzzle-like pieces.

Explain the oceanic crust. A thin crust that is underneath the ocean. (Ocean floor.)

• The oceanic crust is a thick layer beneath the ocean.

• The oceanic crust is a thin layer beneath the ocean.

• The oceanic crust is a thin layer above the ocean.

• The oceanic crust is a thick layer above the ocean.

Explain the continental crust. Hard, solid and rock like and thick, it is what you walk on.

• The continental crust is hard, solid, rock-like, and thick.

• The continental crust is soft and thin.

• The continental crust is liquid and gaseous.

• The continental crust is made of water and air.

Explain the mantle. It is the thick layer below the crust and is made of rocks and minerals.

• The mantle is the thin outer layer of the Earth.

• The mantle is the thick layer below the crust made of rocks and minerals.

• The mantle is the core of the Earth.

• The mantle is the layer above the crust.

Explain the Lithosphere. Top part of the upper mantle and lower part of the crust. It is hard, rocklike.

• The Lithosphere is the top part of the upper mantle and lower part of the crust, and it is hard and rocklike.

• The Lithosphere is the top part of the lower mantle and upper part of the crust, and it is soft and flexible.

• The Lithosphere is the top part of the upper mantle and lower part of the crust, and it is soft and flexible.

• The Lithosphere is the top part of the lower mantle and upper part of the crust, and it is hard and rocklike.

The asthenosphere is a part of the Earth's structure. Which of the following best describes it?

• A rigid outer layer of the Earth

• A semi-fluid layer beneath the lithosphere

• The Earth's core

• A solid layer above the crust

Describe the outer core of the Earth. It is the layer below the mantle, made of liquid iron and nickel. Due to the rotation of the core, it causes magnetic fields.

• The outer core is solid and made of iron and nickel.

• The outer core is liquid and made of iron and nickel.

• The outer core is gaseous and made of iron and nickel.

• The outer core is liquid and made of silicon and oxygen.

Describe the inner core of the Earth. It is the center of the Earth, and due to the pressure, it is made of solid nickel and iron.

• The inner core is the center of the Earth, made of solid nickel and iron due to pressure.

• The inner core is the outermost layer of the Earth, made of liquid nickel and iron.

• The inner core is the center of the Earth, made of solid nickel and copper due to pressure.

• The inner core is the center of the Earth, made of liquid nickel and iron due to pressure.

The three types of boundaries associated with tectonic plates are:

• Convergent, Divergent, Transform

• Convergent, Divergent, Lateral

• Convergent, Lateral, Transform

• Divergent, Lateral, Transform

The role of tectonic plates in the movement of Earth's crust is to:

• support the Earth's atmosphere

• facilitate the movement of the crust

• control the Earth's temperature

• regulate ocean currents