可以用中文回答.英文回答当然最好.

可以用中文回答.英文回答当然最好.
1 why was the discovery of how to make fire important in making people think about the structure of materials?
2 why were the greeks' conclusions about matter not seientific?
3 in what ways do you think thales saw water change?
4 if a substance was cold and dry,what element did the greeks think it had?
5 what properties would a material have to show for the greeks to decide that it contained fire?