The Origin of the Solar System

The _________ _________ states that the solar system formed from a rotating cloud of dust and gas.

atomic theorynebular theorykinetic theoryNewton theory

• atomic theory

• nebular theory

• kinetic theory

• Newton theory

The generally accepted explanation for the formation of the

______________ is the nebular theory.

• universe

• sun

• solar system

• moon

Tags

NGSS.MS-ESS1-2

A large, thin cloud of dust and gas like the one that eventually formed our solar system is called a(n) __________________.

• lunar nebula

• galaxy

• interstellar interaction

• solar nebula

According to the nebular theory, the solar nebula formed from the material expelled by ________________________.

• previous stars

• previous moons

• asteroids

• comets

The ____________ of the solar nebula, a large cloud of dust and gas, led to a disk-shaped protoplanetary disk, from which the sun and planets formed.

dispersiondisappearancecontractionsublimation

• dispersion

• disappearance

• contraction

• sublimation

Tags

NGSS.MS-ESS1-2

____________________ were asteroid-like bodies that eventually combined to form planets.

• Comets

• Nebula

• Galaxies

• Planetesimals

Planetesimals grew by _______________, the process of adding mass by colliding with other planetesimals.

• depositon

• sublimation

• natural selection

• accretion

The ___________________ provides an explanation for the current motions of the sun, planets, and most moons–nearly all revolve in the direction that the protoplanetary disk was spinning.

• Kintetic Theory

• Newton Theory

• Nebular Theory

• Atomic Theory

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4

The terrestrial planets are relatively small and rocky. In part, that is because the inner solar system was ____________ during their formation for ice-forming compounds to condense.

• too hot

• too cool

• too big

• too small

As the outer planets grew, their gravity increased, and they were able to capture ____________ and ____________ gas.

• neon and chlorine

• hydrogen and helium

• oxygen and nitrogen

• fluorine and argon

Tags

NGSS.MS-ESS1-2