The density can be computed from the volume and gravitational pull (mass). This will usually indicate the types of elements and compounds that make up the planet. The magnetic field gives a clue to the type of core.
rock and ice
comet
Mercury, Mars, and Venus
because they were created like that
it's bleh bloop blah ..
core
because there outer planets
rock and ice
Neptune and Uranus
The surface composition is made of rock and ice.
comet
Atmospheric chemical composition Its temperature.
the inner planets are rocky and warm and the outer planets are made out of gas and is cold
the inner planets are rocky and warm and the outer planets are made out of gas and is cold
mercury,Venus and mars
Mercury, Mars, and Venus
because they were created like that