Definitions for "Comets"
Keywords:  tail, kome, orbit, oort, solar
An object that moves across the sky. hemisphere- half the earth. Orbit-travels around another object Temperature- how hot or cold someone or something is.
Smaller members of the solar system, made of ice, rock, and gas, that orbit the Sun.
A tubular device containing a large pellet of pyrotechnic compostion that is propelled into the when ignited. This device produces a bright rising effect with a long tail.