The part of your eye that looks like a black circle is called this, as is a student
you will notice that the circle inside the cube looks like a ball (a... [DOC] [TLE] Lesson 3 Eyesight Student Worksheet - Scribd [PAR] Materials required: Black pen or marker, Ruler, Blank white paper (half sheet of ... 
Keep your right eye closed or covered and look at the paper with your left eye.