which of these are physical changes in matter? check all that apply. boiling water a pencil being sharpened…

which of these are physical changes in matter? check all that apply. boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

which of these are physical changes in matter? check all that apply. boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

Answer

Answer:

  • boiling water
  • a pencil being sharpened
  • freezing water

Brief Explanations:

Physical changes do not change the chemical composition of matter. Boiling water changes water from liquid to gas, a pencil being sharpened changes its shape, and freezing water changes water from liquid to solid, all without altering chemical makeup. Exploding dynamite and rotting cheese are chemical changes as new substances are formed.