Which process is a physical change?

iron rusting

milk turning to curd

water boiling

paper burning

hard water staining pipes

Question

Which process is a physical change?

    iron rusting

    milk turning to curd

    water boiling

    paper burning

    hard water staining pipes

anonymous · Answer

@Kaysee909

ipwnbunnies · Answer

Physical changes are usually involves a substances changing states of matter. Solid to liquid, liquid to gas, etc.
Which one of these goes through a change in its state of matter?

anonymous · Answer

Milk turning to curd. ewwww. :P

anonymous · Answer

i would say water boiling

anonymous · Answer

:3 also milk turing to cure as well but im not 100% sure whch one

ipwnbunnies · Answer

Yes, it is water boiling. Milk turning to curd might seem right, but it's a chemical change with the chemicals and the nature of milk.

anonymous · Answer

Ah, Okay. Thank you for the help!