Something that tricks your eyes
Optical Illusion
Figure such as square, triangle and rectangle
Shapes
A shape with 4 equal sides.
square
A 3D image formed by 6 equal squares
Cube
a procedure to make a discovery or to determine something
Experiment
A round shape
circle
A shape with 3 sides and 3 angle
Triangle
A shape with 4 sides and 4 angle with 2 unequal sides
Rectangle
with their backs touching each other
Back to back
Spin quickly
Twirl
A small round mark
Dot
The highest point
Top
The lowest point
Bottom
A place where 2 sides meet
Corner
