2526 Layers of the Earth

Open Ended

What do you already know about the inside of the Earth? Share any ideas or facts you have.

Multiple Choice

Which of the following is the primary material that makes up the earth?

• Rock

• Water

• Gas

• Metal

Multiple Choice

What percentage of the earth’s surface is covered by water, and what is this layer called?

• 50%, Lithosphere

• 75%, Hydrosphere

• 90%, Atmosphere

• 25%, Biosphere

Multiple Select

Which of the following are layers found inside the Earth?

• Crust

• Mantle

• Outer Core

• Atmosphere

Multiple Choice

Which two main ways are used to classify the layers of the Earth?

• Compositional and Physical

• Solid and Liquid

• Crust and Core

• Mantle and Core

Open Ended

If scientists cannot dig past the crust, how do they know what is inside the Earth?

Multiple Choice

Which of the following statements best describes how seismic waves help scientists understand Earth's interior?

• Seismic waves change speed and direction as they pass through different materials inside Earth.

• Seismic waves only travel on Earth's surface.

• Seismic waves are not affected by Earth's layers.

• Seismic waves can be seen with the naked eye.

Multiple Choice

Which of the following is NOT one of the four distinct layers of the Earth according to geologists?

• Crust

• Mantle

• Atmosphere

• Inner core

Multiple Choice

Which of the following materials can be found covering the Earth's crust?

• Water

• Sand

• Soil

• All of the above

Multiple Choice

What is found below the loose layer of soil, sand, and crumbled rocks on Earth?

• Water

• Bedrock

• Molten rock

• Ice

Multiple Choice

What is the outermost layer of the Earth called?

• Crust

• Mantle

• Outer core

• Inner core

Multiple Choice

Which of the following statements about the Earth's crust is correct?

• It is the thinnest layer of the Earth.

• It is the thickest layer of the Earth.

• It is the hottest layer of the Earth.

• It is the most dense layer of the Earth.

Multiple Choice

Which layer of the Earth has the lowest density?

• Crust

• Mantle

• Outer core

• Inner core

Labelling

Drag the labels to the right place.

Drag labels to their correct position on the image

Oceanic crust

Continental crust

Multiple Choice

The correct order of the Earth's layers starting from the OUTSIDE going IN is

• crust, inner core, mantle, outer core

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• inner core, outer core, mantle, crust

Multiple Choice

Which layer is made of liquid metal (Fe and Ni)?

• crust

• mantle

• outer core

• inner core

Multiple Choice

Which layer is the hottest?

• crust

• mantle

• outer core

• inner core

Multiple Choice

Which layer is the thinnest?

• crust

• mantle

• outer core

• inner core

Multiple Choice

Which layer can be described as either Oceanic or Continental?

• crust

• mantle

• outer core

• inner core

Multiple Choice

Which layer is made of solid iron & nickel?

• inner core
• outer core
• mantle
• crust

Multiple Choice

What is the outer core made of?

• solid rock
• solid metal
• melted rock
• melted metal

Multiple Choice

Which layer has the coolest temperatures?

• outer core
• inner core
• mantle
• crust