i would like to know how does neptune and uranus compare and contrast with jupiter and saturn?

Question

waht makes them similiar to one another and different?

Answer 1

The old professor says: Neptune and Uranus are both further from the sun than are Jupiter and Saturn.
N. and U. are smaller that J. and S.

N. and U. are close to each other in size.

J. and S., relative to each other, are quite different in size.

N. and U. have fewer satellites than either S. or J.

They are all of the jovian (or Jupiter-like) class of planets.

All jovian planets are "gas bags" of large size and low density. Their atmospheres are thick, cores are small, and contain large amounts of methane and ammonia in their atmospheres. They all have more satellites than do the terrestrial class planets.

Answer 2

Read all about them

http://en.wikipedia.org/wiki/Gas_giant