For example melting of lead.
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A sample of a physical change is when ice melts into water or a piece of paper is torn into smaller pieces. These changes do not alter the chemical composition of the substance, only its physical state or appearance.
Melting a sample of gold is an example of a physical change.
Freezing biological samples for storage is considered a physical change. The process of freezing involves changing the state of matter from liquid to solid without altering the chemical composition of the sample.
Origami is a physical change because it involves the folding and manipulation of paper without altering its chemical composition.
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??