Wednesday, February 17, 2010

1.During thermal expansion, what happens to the density of a substance.

During thermal expansion the object is
heated on the inside. The cool air from the object is released into the air. Then the warm air must stay in the object stay. Then the heat air expans and changes the objects form. That is what happens to an object during thermal expansion.

1 comment:

  1. I never really knew that. like i got mines from wikipedia and i dont know which is right. Well good job still.