Q: 42 (NDA-I/2016)

A glass vessel is filled with water' to the rim and a lid is fixed to it tightly. Then it is left inside a freezer for hours. What is expected to happen ?
question_subject: 
Science
question_year: 
2016
question_exam: 
NDA-I
stats: 
0,128,48,32,8,136,0