It makes sense given the percentages of elements available within the Earth system because:

• the most abundant elements are reflected in Earth's composition

• rare elements dominate Earth's structure

• Earth's elements are evenly distributed regardless of abundance

• the least abundant elements are most important

Tags

NGSS.MS-ESS2-1

According to the pie chart of Earth's Elements (percentage by number of atoms), which element is the most abundant in Earth's composition?

• Magnesium

• Oxygen

• Silicon

• Iron

Tags

NGSS.MS-PS1-1

What are the three main compositional layers of Earth based on density?

• Iron core, rocky mantle, rocky crust

• Water layer, rocky mantle, iron crust

• Rocky core, iron mantle, water crust

• Iron core, water mantle, rocky crust

Gravity pulls denser materials, like metal, more strongly toward Earth's center.

• True

• False

Tags

NGSS.MS-PS2-4

Fill in the blank: The inner core and outer core have slightly different ________, although both are mostly made of iron and nickel.

• compositions

• temperatures

• colors

• sizes

Tags

NGSS.MS-PS1-1

According to the diagram, what caused the forming planet to be mostly or completely molten at some point?

• Accretion of smaller particles

• Kinetic energy from collisions converted to thermal energy

• Cooling of the planet

• Differentiation of materials

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What are the five layers of Earth's interior based on physical properties?

• Lithosphere, asthenosphere, mesosphere, outer core, inner core

• Crust, mantle, core, ocean, atmosphere

• Lithosphere, hydrosphere, mesosphere, biosphere, core

• Crust, mantle, outer core, inner core, hydrosphere

Fill in the blank: Increasing temperature tends to cause substances to ______, while increasing pressure tends to stiffen substances, making them harder to melt.

• melt

• freeze

• shrink

• solidify

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

It might be useful for scientists to have multiple models for describing Earth’s interior structure because:

• Different models can be more useful depending on the context and the type of information needed.

• Having multiple models makes research more complicated and confusing.

• Only one model is ever accurate, so others are unnecessary.

• Multiple models are used only to teach students, not for scientific research.

Tags

NGSS.HS-ESS2-3

Use the information from the infographic to complete the table for the Lithosphere: Earth's layer: Lithosphere

• Methods of Heat Transfer: Conduction; Physical State of the Material: Solid

• Methods of Heat Transfer: Convection; Physical State of the Material: Liquid

• Methods of Heat Transfer: Radiation; Physical State of the Material: Gas

• Methods of Heat Transfer: Conduction; Physical State of the Material: Liquid

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-4

NGSS.MS-PS3-4