Liquid is important because we need to drink liquid water, and if water was always solid, humans would never survive. Plus, if liquid wasn't a state of matter, humans wouldn't be able to exist because about 70% of the human body is liquid.
Chemistry
No, changes in state of matter (such as melting, freezing, boiling) are physical changes, not chemical changes. Chemical changes involve the formation of new substances with different chemical properties.
With the help of some physical and chemical processes matter changes its state. Like using heating , cooling etc we can change the state of matter,
Changes in matter affect our lives in various ways. For example, cooking involves changes in the physical and chemical properties of ingredients. Weather changes involve changes in the state of matter, such as water changing from vapor to liquid to solid. Industrial processes, like manufacturing and recycling, rely on changes in matter to produce goods and reduce waste.
physical or chemical changes
The most important are changes of phase: melting, boiling, freezing.
to classified weather it is a chemical or physical change :))
Matter undergoes changes due to interactions between its particles, such as collisions, chemical reactions, or changes in temperature, pressure, or energy levels. These interactions can cause rearrangement of the particles or changes in their properties, leading to physical or chemical changes in the matter.
The study of properties of matter and how it changes is called chemistry.
Chemistry
Chemistry - the study of the properties of matter and how matter changes
laws and principle governing changes of matter
Matter changes state because of pressure and temperature.
chemistry
how temperature can bring about changes in the state of matter
Matter is modified by phases changes.
the materials changes in matter example ,candle ,paper ,sugar and many more