Physical change

ANTONIO LEONE

Description Of A Physical Change

A physical change is a change in the size, shape, form, or state of matter that does not change the matter's identity. There are many examples of physical changes. If you change the shape of modeling clay,from a ball to a flat circle, the mass does not change. Dissolving is a physical change. When sugar molecules dissolve in water, the water molecules and sugar molecules do not change, even after all sugar crystals have dissolved. Changes in state of matter are also physical changes. The particles that make up ice, liquid water, and water vapor are the same. Changing the state of matter only changes the distance between the particles and the amount of energy the particles have.
Chemical and Physical Changes

Explanation of Video Choice

I chose this video because it describes a physical change, the state of matter. It shows how the particles that make up ice, liquid water, and water vapor are the same no matter what state of matter, the water(H2O), is in.

Explanation of Video Choice

I chose this video because it describes the difference between a physical and chemical change. It gives examples of each change. It also explains which change is reversible and why some changes are irreversible.