Answer:
1. The size of paper change after making a paper origami by folding it.
2. Each fold in a piece of paper changes the memory of the paper--it changes the paper's shape and the position that the paper most wants to be in.
3. No, yes
7. It's physical appearance, because it's position will shift as a result.
5. Because folding the paper does not modify its chemical properties, it is considered a physical modification. Only the shape of the paper changes, which is a physical change.
