Examples are
Screwing in a screw - Unscrewing a screw
Opening a door - Closing a door
etc.
Hope this helps
examples of physical change are ice,water,chocolate,liquid,
A mixture of salt and sand is an example of a physical change since the process is reversible.
Yes, this change is reversible.
As I have learned, it is an irreversible change, so no its not a reversible change.
Reversible states: solid, liquid, gas
Yes, evaporation is the changing of matter from a liquid to a gas. You can reverse this process through condensation which is the change from a gas to a liquid.
Rain is a natural phenomena and is not reversible.
Filtering is a reversible change because it can be undone by simply removing the filter and allowing the substances to mix again.
Burning is an irreversible change.
reversible
It is not a reversible change. During boiling some components are extracted with hot water from the crushed dried leaves. It is impossible to restore the original leaves.
Nearly, a physical change creates a substance and this is reversible. For example, ice-water. Water-steam. These are all reversible. A chemical change is irreversible. For example, baking a cake; you cannot get the original ingredients back again.