(PP4) mass and volume

• To investigate experimentally the relationship between the mass and volume of liquids and regular solids
• Independent Variable is the volume of the object.
• Dependent Variable is the mass of the object.
• Control Variables are the material of the object, room temperature, and temperature of the water.
• Density = Mass / volume
• As the volume of the material increases, the mass will also increase.

  The greater the volume of the object the greater the number of atoms present.

  This will result in the object having greater mass.
• The main cause of error in this experiment is the measurement of length, breadth and height.

  This can be kept to a minimum by repeating each measurement and calculating the average.
• The main cause of error in this experiment is reading the volume of water.

  Care should be taken to read the volume at eye level.

  The density of water changes with temperature so keep the water at constant temperature.