Volume: The amount of space that an object takes up or occupies.














Also volume is determine by using a formula for  regular shaped object and irregular shaped object using a graduated cylinder with water inside it.             








  
 The formula is: Length* width* heigth..

Density: Is the measure of the amount of mass in a given volume.The formula for density is mass/ volume.

Physical and chemicals changes 

Examples:

Physical changes: A characteristic of a substance that can be observed and measured without changing the the identity of the substance.

 Electrical conductivity: the measure of how well and electrical current can move thruogh a substance.

Solubility: ability of a substance to dissolve in an other substance

malleability.

Malleability: the ability of a substance to be rolled or pounded into various shapes.

Chemical Changes: describe a substances ability to change into a new substance with different properties. 

  Flammability: The ability of a substance to burn.

    Reactivity: Is the ability of a substance to interact with another substance and form a new one