holt science spectrum physical science answers

">The phenomenon by which, a ray of light splits into its constituent colours, when passed through a transparent medium, is known as dispersion. The band of colours obtained due to the dispersion of light is called the spectrum. Atmospheric Refraction Atmospheric refraction is the shift i..

A physical change is one in which the shape, size, appearance or state, of a substance may alter, but its chemical composition remains sam..

A physical change is one in which the shape, size, appearance or state, of a substance may alter, but its chemical composition remains same. No new substance is formed. It is usually a change, which is reversible. By reversing the process, the original substance can be obtained. Example,..

Properties of objects and materials Position and motion of objects Light, heat, electricity, and magnetis..

Properties and changes of properties in matter Motions and forces Transfer of energ..

Properties of objects and materials Position and motion of objects Light, heat, electricity, and magnetis..

According to Mendel, the genotype i.e., the combination of genes or the genetic constitution is made of certain structures called factors. The factors controlled the inheritance of all traits. These factors are present in pairs. The factors are now called genes. Thus the physical basis o..

Is Matter Around us Pure - Physical and Chemical Changes Matter undergoes certain changes as a result of the application of energy. Water from saltpans on the seacoast dry up, leaving behind salt; water from the sea evaporates to from water vapour, which convert into clouds and then conde..

Physical Properties of Metals..