Earth's Interior

How do scientists know about Earth's inner layers?

• Analyzing core samples from drilling rigs.

• Analyzing seismic waves from earthquakes.

• Analyzing igneous and sedimentary rock samples.

• Asking the mole people who live deep within the Earth.

Which 2 layers make up the Lithosphere?

CHOOSE 2 ANSWERS!!

• Crust

• Rigid Mantle

• Asthenosphere

• Stiffer Mantle

What is the density of Granite?

• 2.7 g/cm³

• 3.0 g/cm³

• 3.4 g/cm³

• 5.6 g/cm³

Tags

NGSS.MS-PS1-1

What is the depth of the center of the Earth?

• 6000 km

• 6400 km

• 3.5 million km

• 13.1 km

Under a mid-ocean ridge, convection currents are...

• rising and then diverging

• converging and then sinking

• rising and then converging

• diverging and then rising

Tags

NGSS.MS-ESS2-1

Under a trench, convection currents are...

• rising and then diverging

• converging and then sinking

• rising and then converging

• diverging and then rising

Tags

NGSS.MS-ESS2-6

Which is a way for scientists to infer the composition of Earth's core?

• Analyzing the composition of meteorites

• Studying lava from volcanoes

• Collecting samples from the core

What is the composition of Earth's core?

• Iron and nickel

• Silicon and oxygen

• Granite

• Basalt

As depth inside Earth increases, pressure...

• increases

• decreases

• stays the same

• decreases, then increases

As depth inside Earth increases, temperature...

• increases

• decreases

• stays the same

• decreases, then increases

Tags

NGSS.MS-PS3-4