Solar System Review 12.4-12.6

region where most of the known dwarf planets orbit

the solid inner core of a comet is called the nucleus

All the gas giant's atmospheres are made up primarily of:

a ___ is a thing disk of small particles of ice and rock.

Which is the most massive outer planet?

_____ is tilted about 90 degrees on its axis

Space _____ such as Cassini have revealed many details of the outer planets

Name the inner planets in order

a small body that combined with like bodies to form all other objects in our solar system

Neptune's blue color comes from _______ in its atmosphere

Temperatures of outer planets ___ greatly from the outer most part to the inside of the planet

region where most comets originate

all the outer planets have many _____

The inner planets are small and dense and have ________ surfaces.

chunk of rock or dust smaller than an asteriod

The fuzzy outer layer of a comet is a coma

Which inner planets experience the greenhouse effect?

meteoroid found on Earth's surface

Which inner planet does not have an atmosphere

a _____ is an object that orbits the sun, is round, and has cleared the area of its orbit.

_ is an object that orbits the sun, is spherical, but has not yet cleared the area of its orbit

______ is twice as far from the sun as Saturn is, so it is much colder.

The sun is a

A large planet that does not have a solid surface

streak of light produced when a meteoroid enters Earth's atmoshpere

Some regions of mars have giant

Mars's atmosphere is composed mostly of

region of the solar system between Mars and Jupiter

A few scientist believe that Saturn's largest moon, ___, may support life.

Name the Outer planets in order

According to scientists, the solar system formed

_____ rotates so slowly that its day is longer than its year.