PHYSICAL AND CHEMICAL CHANGE - The Two Forms And Examples

PHYSICAL AND CHEMICAL CHANGE – The Two Forms, Their Features, And Examples

PHYSICAL AND CHEMICAL CHANGE – In this topic, we will now talk about physical and chemical change, its features and examples.

This is also another lesson in Science that we need to learn. Basically, an object or material will undergo either of the two changes, physical change and chemical change. But what exactly, aside from the name, is the difference between the two?

Physical Change

It is a type of change wherein you can change the physical features or state of a solid, liquid or gas material without changing its identity.

To explain it further, try folding a piece of paper. When you fold the paper, does it change its form? Yes, since you folded it but is it still paper? Yes because you did not change its identity.

Examples:

Breaking a bottle
Crumpling a sheet of aluminum foil
Melting an ice cube
Shredding a paper
Boiling water
Crushing a can
Chopping wood
Cutting an apple
Crumple a paper bag

Chemical Change

On the contrary, chemical change is the changing of a material to become another material by means of chemical reaction.

Let’s use the paper as an example again. Note that the paper is still paper no matter how you fold it or cut it because it is still paper. However, try burning the paper. Does the paper still identified as a paper? No, because you burnt it, which is a chemical reaction. Now, what has become of the paper? It became ash.