List of scientific demonstrations
# List of scientific demonstrations

This is a list of scientific demonstrations used in educational demonstrations and popular science lectures.

## Physics

* Balsa wood bridge — demonstrates compressive strength and tensile strength, teaches engineering thinking
* Egg drop competition — demonstrates compressive strength, teaches engineering thinking
* Hand boiler — demonstrates vapour-liquid equilibrium and simple heat engine principles
* Newton's cradle — demonstrates elastic collision, conservation of momentum, and conservation of energy
* Plate trick or Dirac belt trick — demonstrates spinors and the double cover of SO(3) by SU(2)
* Prince Rupert's Drop — demonstrates supercooling and tensile stress
* Self-siphoning beads — demonstrates momentum, energy and inertia
* Water rocket — demonstrates conservation of momentum, conservation of energy, the gas laws and basic rocketry
* Franklin bells — demonstrate electric charges
* Oxford Electric Bell — an experimental electric bell that was set up in 1840 and which has run nearly continuously ever since
* Wimshurst machine — an electrostatic generator
* Shooting a candle through a plank
* Foucault pendulum — demonstrates the rotation of Earth

## Chemistry

* Ammonia fountain — introduces concepts like solubility and the gas laws at entry level.
* Barking dog reaction — demonstrates rapid exothermic chemical reaction
* Blue bottle (chemical reaction) — demonstrates reduction and oxidation reactions, and chemical colour change
* Chemical garden
* Diet Coke and Mentos eruption — demonstrates bubble nucleation
* Dry ice color show
* Elephant toothpaste
* Fizz keeper
* Flame test
* Magic sand — demonstrates hydrophobic substances
* Mercury beating heart — demonstrates electrochemical redox reaction. and an effect of a non-homogeneous electrical double layer
* Screaming jelly babies — demonstrates the energy within candy
* Using liquid nitrogen to shatter a rose
* Detonating a cloud of flour
