Chapter 23: Touring Our Solar System Review

1) The ________ explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

• protogalactic theory

• nebular hypothesis

• extrastellar solar hypothesis

• planetary compression theory

Most of the mass in the solar system is contained ________.

• in the sun

• in the sun plus Jupiter

• in the outer planets

• in the inner planets

Tags

NGSS.MS-PS2-4

Which observation supports the theory that the planets formed from a disk shaped nebula?

• Pluto and comets follow elliptical orbits that pass inside the orbit of Neptune.

• The Sun is the center of the solar system.

• The rocky planets are close to the Sun.

• The planets revolve around the Sun in approximately the same plane of the ecliptic.

Tags

NGSS.MS-ESS1-2

Which of the following is not a Jovian planet?

• Pluto

• Neptune

• Saturn

• Jupiter

What atmospheric gas is common in the outer planets but rare in the inner planets?

• Carbon dioxide

• Nitrogen

• Hydrogen

• Argon

What is a popular theory for the difference in atmospheres of the Jovian planets versus terrestrial planets?

• High temperatures and solar wind in the inner planets allowed most of the lighter gases to be driven off the terrestrial planets, but not the Jovian planets.

• The Jovian planets are just bigger, so they trap more gases.

• The Jovian planets trapped most of the comets which carried the gases.

• The terrestrial planets are too cold to retain anything but heavy gases.

Which one of the following is not found on Mars?

• polar ice caps

• H2O-rich atmosphere

• sand dunes

• extinct volcanoes

The high surface temperatures of ________ have been attributed to the greenhouse effect.

• Venus

• Uranus

• Mars

• Mercury

________ are found both on Mars and Earth.

• Erosional features related to flowing water

• Active volcanoes

• Heavily cratered landscapes preserved from early in the planets' histories

• Oceans

Tags

NGSS.MS-ESS2-4

The surface features of ________ are known only through satellite radar mapping.

• Jupiter

• Mecury

• Venus

• Mars