2nd E/S Ch. 27 Vocab

Front

Earth-like planets: Mercury, Venus, Mars, Earth.

Back

terrestrial planet

Front

Jupiter, Saturn, Uranus, and Neptune are large gas giants with low densities.

Back

jovian planets or gas giants

Front

A star like the sun and its revolving objects in space

Back

Solar System

Front

Primary bodies orbiting the sun; similar body orbiting another star.

Back

planet

Front

A rotating cloud of gas and dust from which the sun and planets formed; also any nebula from which stars and planets may form.

Back

Solar Nebula

Front

A small body from which a planet originated in the early solar system.

Back

planetesimal

Front

Degree of elongation of an elliptical orbit

Back

eccentricity

Front

Time for a body to complete one orbit

Back

Orbital period

Front

Tendency of an object to resist movement or change in speed/direction until acted upon by an external force.

Back

inertia

Front

A region beyond Neptune's orbit containing icy bodies.

Back

Kuiper belt