The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
A piece of paper or thin piece of metal will provide protection from?
You have to first remove the trim piece that covers the front of the radiator in the engine compartment. Then you can access the two metal clips that clips the lens into place.Pull up on those clips and you can slide the headlight assembly out.
One way to connect two paper clips without directly touching them is by using a piece of metal wire or a magnet. Place the wire or magnet near both paper clips and they will be attracted to it, connecting them together without physical contact.
no it is not a physical change because folding a piece of paper does not chemicaly change it.
Physical change
Coloring on a white piece of paper is a physical change because the color change is reversible and does not alter the chemical composition of the paper. The paper remains paper even after coloring on it.
When you crumple a piece of paper, a physical change occurs. The paper's shape and appearance change, but its chemical composition remains the same.
Of itself a metal can not be "shortened". However, a metal OBJECT such as a piece of metal wire can be shortened by cutting a piece off. This would be a physical change.
tearing a piece of paper is a physical change because when you rip it,it is still a piece of paper but lets say that u burn a piece of paper its a chemical change couse you cant change it back to wood again
a piece of paper.
Folding the piece of paper does not change the thickness of the piece of paper. However, the thickness of the folded paper would be twice that of the original sheet of paper.