Software used to represent day and night at a given time

___ is an application software for the study of chemistry. That is different clements etc.

_______ is a desktop environment for Linux based operation system. 

____________tool used to control the lengths of lines,the angle sizes etc.

___________are the lines connecting two non-adjacent verticles of a polygon.

_________, a cool little game where kids build molecules out of atoms 

__________ is a planetarium program

________means to enlarge somthething.