Exploring Earth's Layers and Forces

What defines the compositional layers of the Earth?

• Their mechanical properties

• Their chemical properties

• Their physical properties

• Their magnetic properties

Tags

NGSS.MS-PS1-1

Which layer of the Earth is the thinnest?

• Mantle

• Outer core

• Crust

• Inner core

What is the primary composition of the Earth's core?

• Silicon and oxygen

• Iron and nickel

• Magnesium and aluminum

• Carbon and hydrogen

Which type of crust is denser and younger?

• Continental crust

• Oceanic crust

• Both are equally dense

• Neither, they are the same

What is the main reason the outer core is important for Earth?

• It supports the continents

• It generates Earth's magnetic field

• It provides nutrients to the mantle

• It regulates Earth's temperature

Who discovered that the continents were moving?

• Isaac Newton

• Albert Einstein

• Alfred Wegener

• Charles Darwin

Tags

NGSS.MS-ESS2-3

Which type of stress pulls on the crust, stretching the rock?

• Compression

• Shearing

• Tension

• Folding

What is the area beneath Earth's surface where rock under stress breaks called?

• Epicenter

• Focus

• Fault

• Crust

Which seismic wave travels the fastest?

• S-waves

• Surface waves

• P-waves

• T-waves

What type of boundary is created by shearing stress?

• Divergent boundary

• Convergent boundary

• Transform boundary

• Subduction zone