paper shredding
physical, you are only changing its appearance! :P
because it only changes its appearance
Physical... Chemically it's still cheese - but the shredding changes its appearance.
Cutting down a tree. shredding of paper as well as same of the irreversible change
paper shredding
it changed from paper to paper.
physical, you are only changing its appearance! :P
because it only changes its appearance
because it only changes its appearance
Physical... Chemically it's still cheese - but the shredding changes its appearance.
physical, you are only changing its appearance! :P
Yes - and no.... Physically it's still paper - but the information on it can no longer be read.
Shredding paper is a physical change because you can put all the pieces of paper back together again, i.e. it is still paper. The chemical nature has not changed, only the APPEARANCE has changed.
Shredding paper is a physical change because you can put all the pieces of paper back together again, i.e. it is still paper. The chemical nature has not changed, only the APPEARANCE has changed.
I have a feeling that this is for homework, but whatever. Crushing stone, sawing wood and shredding paper are all examples.
Shredding wood is only a physical change because the chemical composition is still the same. Even though the force of friction is involved the wood doesn't create and ash or smoking embers which is the chemical change of wood. Although some of the chemicals used to prevent un wanted damage to wood during manufactured shredding would add a chemical composition change to the wood unknowingly