20 questions
Distances in space are measured in (a)
Clouds around Jupiter that are low, warm, and dark. They sink! (a)
A ratio of the distance between the foci to the length of the major axis of an ellipse; a calculation to determine the percentage of deviation from a circle (a)
The shape of the planets' orbitals around the Sun
Eccentricity
Belts
Ellipse
Zones
The large planets - Jupiter, Saturn, Uranus, Neptune (a)
A form of hydrogen with the properties of a liquid and a metal; core of Jupiter (a)
Colliding particles in the early solar system that formed our planets
Belts
Planetesimals
Comets
Scarps
The apparent backward movement of a planet; led to the geocentric model (a)
The system of cliffs on a planet (a)
The four inner planets - Mercury, Venus, Earth, Mars
Gas Giants
Dwarf Planet
Terrestrial
Planetesimals
Small, icy body that has a head and a tail (a)
Must orbit the Sun; be nearly spherical; has not cleared the orbit of debris (a)
The streak of light produced by a meteoroid
Scarps
Meteor
Satellite
Meteoroid
A meteoroid that hits the ground (a)
An asteroid fragment (a)
A body that orbits another; a moon
satellite
comet
scarp
meteor
The particles of a comet's trail that burn up in our atmosphere (a)
An area of rock and ice outside Neptune's orbit (a)
Must orbit the Sun; be nearly spherical; has cleared its orbit of debris
Comet
Planetesimals
Planet
Satellite
High, cool, light-colored clouds over Jupiter (a)