Maybe you have heard of Law of Conservation of Matter. This states that matter can be neither created nor destroyed. This propped up the materialist philosophy.
First of all, it's the law of conservation of mass-energy. Einstein showed that the law of conservation of matter is not true. Second of all, even if true, how would matter conservation contradict the theory that matter left over from the formation of the sun coalesced under the influence of gravity to form the earth?