Sc6 Planets (40)

these two minor planets are considered to be twin planets

The 2 gases that make up most of the giant planets:

The ONLY planet besides earth to have SEASONS and ICE CAPS:

The giant planet characterized by a Great Red Spot

The ONLY MOON in the solar system to have an ATMOSPHERE:

Long-term comets come from this part of the solar system:

Term for the trapping of heat by the dense atmosphere of Venus:

The location of the icy-rocky objects found around Pluto:

The only planet that rotates BACKWARDS and whose day is LONGER than its year:

The gas found around the mmelting icy-rocky center of a comet

The adjective describing puzzle-like plates that make up the earth's crust:

a rocky object orbiting the sun OUTSIDE of the asteroid belt

The planet with the HIGHEST AVERAGE TEMPERATURE:

The planet with the GREATEST temperature range:

The only dwarf planet to be found in the asteroid belt

The dwarf planet that was once considered a planet

The planet known as the "red planet" due to its rusty soil:

A meteor that strikes earth

The only planet to ROTATE ON ITS SIDE:

A light year from the sun, this distant part of the solar system consists of "dirty snowballs":

The first comet to be discovered (1700's)

Gas that makes up 21% of the earth's atmosphere:

The gas that makes up most of the atmospheres of BOTH Venus and Mars:

The material believed to make up the cores of the giant planets:

This is a common GREENHOUSE GAS:

Name the 2 planets that do NOT have moons:

The rocky-metallic "shooting stars" that strike earth:

The SMALLEST GIANT planet:

The LARGEST, MOST MASSIVE DWARF planet:

The moon has the FRACTION of the earth's gravity:

The techical term for shooting stars

The NUMBER of PLANETS that have rings:

The largest TERRESTRIAL planet:

The VOLCANIC MOON of Jupiter:

this part of a comet ALWAYS points AWAY from ther sun

One of the most recent space probes to land on Mars:

The planets that have PHASES (shapes) like our moon:

The approximate amount of the moon's surface visible from earth:

The SMALLEST TERRESTRIAL planet:

This causes the GAS tail of a comet to always point away from the sun: