Question

Here only 4 ques are given 5.Ice floats on water due to the anomalous expansion of water. 6.All metals conduct heat easily. 7. Copper and silver are exceptionally good conductors of heat. 8.During convection, the molecules actually move from one part of fluid to the other.

Answer 1

1. is false because when temperature increases or any substance is heated then it's density decreases as density is inversibly proportional to volume.
5.could have been True if proper explanation would have been given on the basis of structures.