EVERYDAY SCIENCE

Detailed explanation-1: -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.

Detailed explanation-2: -Physical properties refer to properties that can be observed or measured without changing the composition of the material. Examples include colour, hardness and smell and freezing, melting and boiling points.

Detailed explanation-3: -The physical properties that will be measured during this lab are solubility, density, melting point, boiling point and refractive index. These physical properties can help elucidate the identity of an unknown substance. These same properties can also be used to determine the purity of a particular compound.

Detailed explanation-4: -Physical Property: Something that is observable and measurable without changing the substance (chemical composition). E.g. color, mass, temperature, density, texture, shape.

Detailed explanation-5: -A physical change is a change to a sample of matter in which some properties of the material change, but the identity of the matter does not. When liquid water is heated, it changes to water vapor. However, even though the physical properties have changed, the molecules are exactly the same as before.