Why does water expand when it goes from a liquid to a solid? ...

[bio_gurl]

Why does water expand when it goes from a liquid to a solid?
 
  A) The water molecules become aligned in a way that creates extra volume.
  B) The liquid has a higher density than the ice.
  C) Ice molecules are bigger than water molecules.
  D) The liquid water molecules are bigger and shrink when cooled.
  E) none of the above

Question 2

Scientific research usually leads to ________.
 
  A) expected results
  B) the discovery of new questions
  C) social well-being
  D) inconclusive results

[Eunice618]

Answer to Question 1

A

Answer to Question 2

B