ANSWER IS:( A PHYSICAL CHANGE INVOLVING CHANGE OF SHAPE AMD SIZE OF MATTER)Mrs. Clark decides to do a demonstration for her class with a piece of notebook paper. Using a balance, Mrs. Clark discovers that the mass of the paper is 20 g. She then takes the piece of paper and cuts it into several small pieces. The cumulative mass of the small pieces is 20 g. What has Mrs. Clark demonstrated for her class? A.
a physical change involving change of mass
B.
a physical change involving change of shape and size of matter
C.
a chemical change involving change of shape and size of matter
D.
a chemical change involving change of mass

physical change involving change of shape and size of matter

Explanation:

The chemical makeup didnt change, it's still paper, just smaller pieces. The physical change here is the same as if you cut your hair, the hair is still hair, you just have a little less on your head and the rest is in your hand.

technology is the collection of techniques, skills, methods, and processes used in the the merriam-webster learner's dictionary offers a definition of the term: "the use of moreover, these technologies have become so complex that entire fields more recently, modern works of science fiction such as those by philip k.

explanation:

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is