Any superstitious behavior such as the belief that a black cat ...

[saliriagwu]

Any superstitious behavior such as the belief that a black cat can bring bad luck is called
 
  egocentrism.
  animism.
  voodoo.
  matricular thinking.

Question 2

An experimenter lines up pairs of checkers into two identical rows. Then the experimenter elongates one of the rows by spacing the checkers farther apart. This is a classic test of
 
  conservation of volume.
  conservation of area.
  conservation of number.
  conservation of matter.

[cpetit11]

Answer to Question 1

animism.

Answer to Question 2

conservation of number.