1.0 Experiment outcome
To explore and compare the density of various substances.
2.0 Theory
The mass density or density of a material is defined as its mass per unit volume.
Different materials usually have different densities, so density is an important concept
regarding buoyancy, purity and packaging.
Less dense fluids float on more dense fluids if they do not mix. This concept can be
extended, with some care, to less dense solids floating on more dense fluids. If the
average density (including any air below the waterline) of an object is less than water
(1000 kg/m3) it will float in water and if it is more than water's it will sink in water.
The mass density of a material varies with temperature and pressure. (The variance is
typically small for solids and liquids and much greater for gasses.) Increasing the
pressure on an object decreases the volume of the object and therefore increases its
density. Increasing the temperature of a substance (with some exceptions) decreases its
density by increasing the volume of that substance.
3.0 Apparatus/Equipment
Measurement scales
Beaker
Water
4.0 Safety Precautions
1. Make sure the student follow the laboratory or workshop safety regulators.
2. Experiment must be conduct by lecturers or experience lab assistance
5.0 Procedures
Experiment 1: Comparing Density of Various Objects
