what are some examples of physical change in matter?

Answer 1

simply example;
ice > water > steam

Answer 2

Matter can exist as gas, liquid, solid, or Bose Einstein particles. Water is a good example of the first three states. Steam is the gas, water is the liquid, and ice is the solid. In general as energy is drawn off, the gas turns to water and then the water turns to ice.

Not all matter goes through the same states. For example, dry ice (frozen CO2) goes directly from the solid to a gas when heat is added to the ice.

Bose Einstein condensate is weird and rare stuff. Check this out...

"A Bose–Einstein condensate (BEC) is a state of matter formed by a system of bosons confined in an external potential and cooled to temperatures very near to absolute zero (0 kelvin or −273.15 °C). Under such supercooled conditions, a large fraction of the atoms collapse into the lowest quantum state of the external potential, at which point quantum effects become apparent on a macroscopic scale"[See source.]

Some really strange things happen at those temperature...like super conductivity where there is no electrical resistance at all. And, really weird, the BEC will run uphill along the sides of a container without the aid of an external force.

PS: That first answer, wood to ash, is in error. That represents a chemical change, oxidation, rather than a state change, which is the physical change I think you are getting at.

Answer 3

1...Solid to liquid and vice versa.
2...Liquid to vapour (gas) and vice versa.
3...Tearing up a piece of paper.
4...Making sawdust by sawing wood.
5...Making a jacket out of wool.
....Any change in matter that does NOT involve a Chemical change.

(Once again, to the 'Thumbs Down merchant', the answer is correct in every way. Shove your thumb where the Sun don't shine).

Answer 4

Wood turns to ash when burned. Water turns to ice when frozen.