Earth's Layers / Tectonics Review

The earth is primarily composed of how many layers?

• 3

• 8
• 6
• 2

What is the difference between composition and physical properties?

• Composition refers to the characteristics that can be observed or measured without changing the material
• Composition refers to the types and amounts of substances that make up a material, while physical properties refer to the characteristics that can be observed or measured without changing the composition of the material.
• Composition is the same as physical properties
• Physical properties refer to the types and amounts of substances in a material

Tags

NGSS.MS-PS1-1

The Earth's crust is composed of

• sand and water
• metal and plastic
• wood and glass
• rocks and minerals

The Earth's crust makes up how much of Earth's total mass?

• 1%
• 75%
• 50%
• 10%

Continental crust is...

• denser than oceanic crust

• heavier than oceanic crust

• older than oceanic crust

• less dense than oceanic crust

The composition of the Earth's mantle is...

• pure gold and silver
• fossilized dinosaur bones
• molten rock (magma)

• frozen water and carbon dioxide

The OUTER core of the Earth is composed of

• solid gold and silver
• molten iron and nickel
• liquid mercury and lead
• frozen water and carbon dioxide

Tags

NGSS.MS-PS1-1

The INNER core of the Earth is composed of

• solid gold and silver
• liquid mercury and lead
• frozen water and carbon dioxide
• solid iron and nickel

the liquid outer core of the earth is...

• spinning

• young

• composed of gold

• composed of iridium

________________ travel different speeds through solid rock and liquids

• seismic waves

• gasses

• plasma

• magma

Tags

NGSS.MS-PS4-2