Unit 1 Vocab Quiz

What does the Accretion Theory explain?

• The formation of planets from solid particles

• The gradual buildup of particles in a gaseous environment to form larger masses

• The cooling and condensing of solar nebular gas

• The formation of the Earth's crust

Tags

NGSS.HS-ESS1-6

What is the definition of the term "Biosphere"?

• All the waters on the Earth's surface

• A thin layer of gases surrounding Earth

• Part of Earth in which life exists including land, water, and air or atmosphere

• All of the rock at and below Earth's surface

Which term describes a small body from which a planet originated in the early stages of development of the solar system?

• Protoplanet

• Asteroid

• Comet

• Planetesimal

Tags

NGSS.HS-ESS1-6

What is a Protoplanet?

• A large body in space that orbits a star and does not produce light of its own

• A body that grows by the accumulation of planetesimals but has not yet become big enough to be called a planet

• A celestial object consisting of a nucleus of ice and dust

• Any of numerous small celestial bodies made of rock and metal that move around the sun

What is the Hydrosphere?

• A thin layer of gases surrounding Earth

• All the waters on the Earth's surface, such as lakes and seas, and sometimes including water over the Earth's surface

• All of the rock at and below Earth's surface

• Part of Earth in which life exists including land, water, and air or atmosphere