Difference between Line, Line Segment and Ray

After doing the inquiry on line, line segment and ray, students of grade IV came out with the following difference among them.

Line	Line Segment	Ray
It has no end points.	It has two end points.	It has one end point.
It can be extended on both sides.	It cannot be extended.	It can be extended from one side.
It has no fixed length.	It has fixed length.	It has no fixed length.