SOLAR SYSTEM
DEFINITIONS
ANCIENT
Of or relating to times long past
APPARENT
Clear or obvious
ATMOSPHERE
The air or climate in a specific place
ATOMIC REACTION
Explosion
COMPLEX
Complicated
COMPOSED
To make or create by putting together parts
DENSITY
Thickness
DIAMETER
Width
DISTINCTIVE
Noticeable or different
ESTIMATE
A close, but not exact, measurement
EVIDENCE
A thing or things helpful in forming a conclusion
FAINT
Lacking brightness
GALILEO
Italian who believed that the sun forms the center of the universe
GASEOUS
Of a gas
INDIVIDUAL
Separate
INTERSECT
To cut through
IRREGULARLY
Not like others
METHANE
An odorless, colorless gas
NASA
National Aeronautics and Space Administration
ORBITING
An object revolving around another object
POLAR
Of or relating to a planet's north and south poles
POLARITY
Magnetic attraction
RADIATE
To send out rays or waves
RELATIVELY
In comparison with something else
SATELLITE
A moon
SOLIDIFIED
Having been made solid
UNIFORM
Always the same