Yes
A piece of paper can be split in half several different ways. One can cut it with scissors (horizontally or vertically) tear it, slice it with knife or use a professional cutting machine (like guillotine).
But if you mean cutting the paper in half, thick-wise,
that is a lot more difficult to do. If the paper is regular printer or newspaper thickness, regular household methods won't cut it. For that you need laboratory equipment, especially something that can do cutting on molecular level.
you are folding it, there is still only one piece of paper
you can fold a 4 piece in half 5 times
A standard piece of paper cannot be folded 7 times, but the Mythbusters folded a hangar sized piece of paper 11 times.
yes if it is not in half, but if you you mean in half, then: A normal piece of paper, no. The width becomes to thick and the length too small. But here are some websites where they get a huge piece of paper so the length doesn't become too small, and they can do it 11 or 12 times: http://pomonahistorical.org/12times.htm http://blogs.howstuffworks.com/2009/07/23/why-cant-you-fold-a-piece-of-paper-more-than-seven-times/
1. breaking a rock in half 2. ripping a piece of paper
The answer depends on the piece of paper. You can cut it in half lengthways: it will still be a piece of paper but its width will be half as large!
The height of a piece of paper folded in half once is half of its original height.
You take 2 square pieces of paper and fold both in half. Cut one halfway down the fold line making a split. Put the uncut piece of paper inside the split and tape where you want it to stop sliding.
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.
you are folding it, there is still only one piece of paper
Q. What size is half of an A4 piece of paperA. A5 piece of paper 1/2 of A5 = A6 1/2 of A6 = A7
you can fold a 4 piece in half 5 times
Take a piece of paper and cut it in half (anywhere will do) and you will have two pieces of paper - and your original piece of paper has changed shape.
Any paper can be folded in half for 6 times.
You can't fold a piece of paper 50 times
Physical change
Any size sheet of paper can only be folded in half 7 times.