A cylindrical glass beaker which has a side opening present near its mouth called spout
An instrument used for measuring the relative density of liquid when it is placed inside the liquid
An instrument used for testing the purity of milk
The force due to gravity which acts vertically downwards and has a tendency of sinking the body
The force which acts vertically upwards and has a tendency of forcing the body to move up
A special organ found in whales that gives them an advantage to sink or rise at their own will in sea water
