Paper cutting is a physical or chemical change

Physical change.

All things around us are made up of small particles with physical and chemical properties, and physical or physical properties are reflected in smell, external shape, melting point, and boiling. So it is possible to know if the change is physical when the material undergoes a physical change, not changing its chemical nature of molecules.

For example, cutting paper is a physical change, because the paper has changed in its external shape or appearance only, but it is still paper and retains all its properties unchanged, and it is not a chemical change, so why change its chemical properties, for example, if the fruits rot, the change is chemical, why? For it is irreversible, but a new substance has formed and transformed the origin of the thing.

Haircut is a physical or chemical change

Physical change.

Cutting hair is a physical change because the change did not result in any new material, but the hair remained the same with its properties, as the chemical change leads to a change in the nature of things irrevocably, and this does not happen in cutting hair, although it cannot be reversed after it occurs, but the cut hair still retains the same properties as it was before cutting.

Cutting the fabric is a physical or chemical change

Physical change.

In the same way as cutting hair and cutting paper, cutting fabric is a physical or physical change, since the cut fabric has not undergone any change in its properties, it is still fabric, and no new material has been formed after the change.

An example of a physical change is the bending of the sheet

Yes, bending the paper is a physical change.

If there is no change except in the appearance or external shape of the material, it is considered a physical change, but if the composition of the material changes and turns into a new material, it is a chemical change, so when you bend the paper, only its appearance changes, but it is still with the same properties of the paper, then it is a physical change.

Which paper changes following are chemical changes

• Lap.
• Burn.
• Ripping.
• Cut.

The answer is burning, because the change resulted in a new irreversible substance, as we have formed a substance that is completely different in its properties from the original material, and this is what happens daily around us in many changes of materials.

Examples of physical change

• Melting snow.
• Boiling water.
• Cut the paper.
• Glass breakage.
• Melting wax.

The aforementioned models represent a physical change known as physical change, because they do not react chemically, and do not result in the formation of new substances, and the physical change is sometimes reversible, for example, melting ice, it can be reversed by turning it into an ice cube again as it was, and it can also be melted into a liquid. And so on.

What happens in chemical change

It produces a new substance with new qualities different from the original.

In chemical change, a substance is always produced different from the characteristics of the original material, as well as the reaction or change cannot be reversed, meaning if iron rusts, it is difficult to convert it again as it was before rusting, as well as fruit rot where nutrients decompose and undergo many chemical reactions that convert them to a new substance with new qualities, which is an example of a useless chemical change.

What are the signs of chemical change occurring

• Discoloration.
• Light and heat.
• Gas formation.

Discoloration: A change in the color of an object may be evidence that the change is chemical, for example when a piece of an apple leaves it, its interior turns brown, and it also differs in its characteristics from a natural apple.

Light and heat: Light and heat result from chemical change, as in the case of combustion or ignition, as the material burns and produces light and heat, and turns into ashes of any new material with new and different qualities from its original properties.

Gas formation: Gas formation is one of the signs of a chemical change, for example when we add baking soda to vinegar we will have a group of bubbles of carbon dioxide gas, where the gas is released from the liquid.

Chemical changes that occur in our daily lives

• Burning paper and logs.
• Digestion of food.
• Boil eggs.
• Electroplating metals.
• Bake the cake.
• Spoilage of milk.
• Fruit rot.
• Waste decomposition.
• Fireworks explosion.
• Iron rust.
• Ignition of a match.

Chemical change is the most common thing we encounter in our daily lives, as the body needs it to digest and analyze food, and it happens around us daily constantly, for example cooking processes, photosynthesis in plants, where the plant draws solar energy to convert carbon dioxide into glucose and oxygen.

What is the difference between physical change and chemical change with giving examples

Physical change

Physical change is a change in the phenotypic form of a substance, without a change in the properties of the substance itself.

Chemical change is considered a temporary change.

The shape and size of the material change, without changing in its properties.

Physical changes do not produce any kind of energy.

Reversible, i.e. the original material can sometimes be easily restored.

Example of physical change: paper cutting, melting wax and ice, boiling water.

Chemical change

Chemical change is a change that involves the formation of a new substance with new properties different from the original substance.

Chemical change is permanent.

The properties and composition of the chemical change.

A chemical change produces energy in the form of light, heat or sound.

irreversible, i.e. the original material cannot be restored

Example of chemical change: iron rust, food digestion, paper burning.