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Allows you to perform gas law experiments including density / molecular weight variations. A very good site for demonstrating variables in the gas laws.
Why does the water always seem colder at the bottom of a lake?
Mathematics of Hall voltages and measurement of sheet density and mobility of charge carriers.
A collection of fun and interesting practicals all related to the atmosphere and weather, covering temperature, density, and pressure
Refractometers are measuring instruments which are based on the principle that as the density of a substance rises), it's refractive index rises proportionately.
An explanation Schlieren photography, often used to reveal air flows from objects by making changes in air density visible.
Relative scale models of an atom, descriptions of size and density of the nucleus and the strong force, with good links to other sites
An experiment from our Physics To Go series about density and pressure. All you need is a large plastic bottle, water, a glass, straw, BluTack and scissors.
An experiment from our Physics To Go series about density. All you need is a pint glass, lager or other fizzy drink, vegetable oil, food colouring, Alka-Seltzer tablet, salt and a stirrer.
Grover from Sesame street demonstrate simple experiments about buoyancy, surface tension and density.
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