physical changes 30 examples
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Answer:
No new chemical species forms in a physical change. Changing the state of a pure substance between solid, liquid, and gas phases of matter are all physical changes since the identity of the matter does not change.
1) Crumpling a sheet of aluminum foil
2) Melting an ice cube
3) Casting silver in a mold
4) Breaking a bottle
5) Boiling water
6) Evaporating alcohol
7) Shredding paper
8) Sublimation of dry ice into carbon dioxide vapor
9) Crushing a can
10) Melting an ice cube
11) Boiling water
12) Mixing sand and water
13)Breaking a glass
14)Dissolving sugar and water
15)Shredding paper
16)Chopping wood
17)Mixing red and green marbles
18)Sublimation of dry ice
19)Crumpling a paper bag
20)Melting solid sulfur into liquid sulfur. This is an interesting example since the state change does cause a color change, even though the chemical composition is the same before and after the change. Several nonmetals, such as oxygen and radon, change color as they change phase.
21)Chopping an apple
22)Mixing salt and sand
23)Filling a candy bowl with different candies
24)Vaporizing liquid nitrogen
25)Mixing flour, salt, and sugar
26)Mixing water and oil
27)Tempering steel
28)Chopping vegetables
29)Dissolving sugar in water
30)Freezing water into ice
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