EVERYDAY SCIENCE

Detailed explanation-1: -Physical properties are those which can be observed or measured without changing the composition of matter. They are used to observe and describe matter. Texture, colour, odour.

Detailed explanation-2: -A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.

Detailed explanation-3: -We can observe some physical properties, such as density and color, without changing the physical state of the matter observed. Other physical properties, such as the melting temperature of iron or the freezing temperature of water, can only be observed as matter undergoes a physical change.

Detailed explanation-4: -Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion.

Detailed explanation-5: -Chemical properties are any of the properties of matter that can be observed and measured only by performing a chemical change or chemical reaction. Chemical properties cannot be determined by touching or viewing a sample; the structure of the sample must be altered for the chemical properties to become apparent.