Earth's Interior Vocab Quiz

How do scientists learn about the different layers inside the Earth?

• By digging deep holes

• By using indirect evidence

• By using telescopes

• By flying over the Earth

Answer explanation

Scientists learn about the Earth's layers primarily through indirect evidence, such as seismic waves, rather than direct methods like digging.

What is the outermost layer of the Earth a?

• Mantle

• Core

• Crust

• Asthenosphere

Answer explanation

The outermost layer of the Earth is the crust. It is the solid surface layer where we live.

What is the oceanic crust made of?

• Granite

• Iron

• Basalt

• Nickel

Answer explanation

The oceanic crust is primarily composed of basalt.

Which layer is located between the crust and the core?

• Lithosphere

• Mantle

• Mesosphere

• Asthenosphere

Answer explanation

The mantle is the layer located between the Earth's crust and the core.

What is the asthenosphere known as?

• Strong layer

• Weak layer

• Outer core

• Inner core

Answer explanation

The asthenosphere is known as the 'weak layer' of the Earth's mantle.

What is the outer core of the Earth composed of?

• Solid iron and nickel

• Liquid iron and nickel

• Solid rock

• Liquid water

Answer explanation

The outer core of the Earth is composed of liquid iron and nickel.

What is the land under the oceans, or the ocean floor?

• oceanic crust

• tectonic plate

• crust

• continental crust

Answer explanation

The land under the oceans is referred to as the oceanic crust.

What part of the Earth's interior is made of solid iron and nickel and is the densest layer?

• mesosphere

• outer core

• inner core

• asthenosphere

Answer explanation

The inner core is the Earth's innermost layer, composed of solid iron and nickel. It is the densest layer.

What are tectonic plates?

• Layers of the atmosphere

• Pieces of the lithosphere

• Parts of the hydrosphere

• Segments of the biosphere

Answer explanation

Tectonic plates are large pieces of the lithosphere, which is the rigid outer layer of the Earth.

Tags

NGSS.MS-ESS2-3

Tectonic plates move move on top of the __________.

• crust

• mantle

• asthenosphere

• outer core

Answer explanation

Tectonic plates move on top of the asthenosphere, which is a semi-fluid layer of the mantle. This allows the plates to shift and interact, leading to geological activity.

Tags

NGSS.MS-ESS2-3