Humans have very good knowledge of the earth environment and are beginning to start understanding about the Universe as well. We are so tiny in the vast scale of the universe that would take thousand of years to learn it all.
Humans collect useful knowledge and pass it from generation to generation.
Humans collect knowledge and share it around with other humans through Scientific Knowledge.
The definition of scientific knowledge is a collection of ideas, principles that has been accumulated through study and experimentation.
So scientific knowledge is something that the humans can rely on and non scientific knowledge is a guide or good to know knowledge.
Non Scientific knowledge is knowledge that has been derived non scientifically and is subjective not necessarily repeatable and changes with circumstatnce.
So the sciences are a body of knowledge that most humans would agree is the best under the present understanding of the human race.
One of the important aspects of scientific knowledge that it is repeatable and does not change under variying. Situations.
Assumptions of previous knowledge and understanding is very important if this is used as the foundation of the scientific knowledge