bacon and eggs(were/be/was)

About four huandred years ago,Mr.Bacon said that warm water freezes more quickly than cold water.Bur few people belived him u_____ 1970.In that years Dr.Well,a well-known scientist ,found that Mr.Bacon was right .He filled o____ bowl with cold water,and the o____ with warm water.Then he exposed b______ to the same low temperature The warm water froze first.The s______ was that the two bowls had to covers.Some of the warm water c______ into vapour .It went into the air .This m______ that less ot the warm water was l______ to freeze.So the warm water froze f_______ than the cold water though it had a greater temperature drop to make.1.______2._______3._______4._______5._______6._______7._______8.______9._______10._______(开头字母已给出） 好的再加50分!