An example of a reversible physical change is tying shoelaces. This action can easily be undone by untying the laces, restoring the shoelaces to their original state. In contrast, cracking an egg, cutting hair, and filing nails are irreversible changes, as they permanently alter the original materials.
Reversible.
Cutting of hair is considered an irreversible change because once the hair is cut, it cannot return to its original state. The physical structure of the hair is altered by cutting, and the length that is removed cannot be reattached to the hair follicle. Additionally, the chemical composition of the hair remains the same after cutting, so the process cannot be reversed.
Rain is a natural phenomena and is not reversible.
That is a chemical change. Physical changes can be undone. Burning a bit of paper is another non-reversible change.
Cutting your hair is a reversible physical change because it can grow back over time. The structure of the hair is not permanently altered by cutting it.
Yes, cutting hair is an example of a physical change. It involves altering the appearance or state of the hair without changing its chemical composition. This change is reversible, as the hair can grow back.
Albert einstein
Yes, dyeing hair is a chemical change because the chemical composition of the hair is altered when the hair dye penetrates the hair shaft and reacts with the melanin in the hair. This change is not reversible without cutting or growing out the dyed hair.
cutting your hair is probably a physical change I don't know
Becuase it will grow again making it a reversible change thus physical
Reversible.
I think it is a physical change Improvement: It's actually a series of chemical changes. As different chemicals are added they break and make bonds within the protein make-up of the hair.
Cutting hair is a physical change because it does not alter the chemical composition of the hair. The cutting process only changes the physical appearance and length of the hair without changing its chemical structure.
no because you cannot really get it back to a whole pear.
Cutting your fingernails is a physical change because the composition of the material (keratin) remains the same before and after cutting. A chemical change involves a change in the chemical composition of a substance.
Cutting doesn't change the chemical composition.