Earth's Early History

What is a more scientific term for the "giant, flattened, spinning cloud of gas, dust, and other material"?

Where did the gas and dust in a nebula come from? (select all that apply)

• left over from a supernova explosion

• escaped from a black hole

• remnants of the big bang

• a giant sneeze

Tags

NGSS.HS-ESS1-2

Which stage of the Sun's life formed during the accretion disk?

• main sequence

• white dwarf

• red giant

• protostar

Which process describes gravity pulling together clumps of rocky material to form larger clumps?

• accretion

• gravitational collapse

• frost line

• celestial clumping

What materials were left closest to the Sun after its formation?

• light gases

• heavy rocky material

• hydrogen

• helium

Which of these stages comes first in the Nebular Theory?

• planetesimal formation

• heavy bombardment period

• protoplanet formation

• protostar formation

Which of these sequences are correct in regard to the Nebular Theory?

• Nebula, planetary accretion, protostar formation, heavy bombardments, terrestrial planet formation

• Heavy bombardment, nebula, planetary accretion, terrestrial planet formation, protostar formation

• Nebula, protostar formation, planetary accretion, terrestrial planet formation, heavy bombardment

• Planetary accretion, nebula, protostar formation, heavy bombardment, terrestrial planet formation

Which stage of the Nebular Theory would come after the formation of planets?

• accretion disk

• gravitational collapse

• heavy bombardment

• main sequence Sun

In radioactive decay, which of these is present first and will undergo decay to form the new isotope?

• mother isotope

• daughter isotope

• parent isotope

• original isotope

Tags

NGSS.HS-PS1-8

In the decay of Carbon-14 to Nitrogen-14, nitrogen is considered the...

• daughter isotope

• parent isotope

• stable isotope

• mother isotope

Tags

NGSS.HS-PS1-8