||A good demonstration
for the study of catalysts.
||Commonly used in junior
science for the introduction of chemical reactions or as part of a
||Demonstrates the making
of an alloy.
||This demonstration shows
light energy emitted from a metal filament (light bulb) when bombarded
with microwave energy. This demonstration can be used when discussing
atomic energy levels.
||Demonstrates the nature
of an exothermic reaction with the production of light and heat as
methane burns in oxygen.
||Another very impressive
exothermic reaction demonstrates the release of energy when hydrogen
and oxygen react to form water. The demonstration is very loud and
proper ear protection must be used. Read the safety instructions first.
|8) Explosive fine powders
||Oxidation / reduction
||This quick rusting reaction
demonstrates the increase in the rate of reaction when surface area
and the concentration of reactants is increased. Material needed are
oxygen cylinder, gas jar, bunsen burner, steel wool and tongs. The
gas jar, seen in the video, is filled with oxygen gas.
||This is a fun activity
with dry ice. Can be used for science shows or when studying the properties
||Click on the blue writing.
These reaction can be demonstrated in junior chemistry classes when
reactions or in senior chemistry in the study of ionic
formulae, ionic equations or precipitates.
||Discussion of polymers
and inter-molecular bonding.
from burning metal(magnesium)
||Exothermic reactions and
the conversion of chemical energy into light and heat.
that burn in water(sodium)
||Demonstration is appropriate
to the discussion of the behaviour of reactive metals.
spontaneous ignition (KMnO4)
salt lava lamp.
||This activity can be conducted
when studying solubility. The demonstration works because of the difference
in solubility of oil and salt.
ending rope (nylon)
||This demonstration can
be used when studying polymers and polymerisation. It involves the
synthesis of nylon and when you view the video it is obvious why this
demonstration is named the never ending rope.
||Demonstrates the dehydrating
action of sulfuric acid for organic compounds.
smoke from candle or from wood fire
||This demonstration can
be used to demonstrate cracking when studying hydrocarbons and the
Boiling point of water
||The relationship between
air pressure and boiling point of water is clearly shown in this demonstration.
as a fuel
Demonstrates the rapid
oxidation of sugar in the presence of an oxidant. This demonstration
is useful for the study of rate of reaction. Increased surface area
and increased concentration of reactant, such as oxygen, will accelerate
the rate of reaction.
Great reaction to also demonstrate the energy in common food and to demonstrate how a compound, sugar, can prodduce and element, carbon.
in a bottle.
||This reaction is similar
to the Serpent. It shows the rapid rate
of a catalysed reaction. Hydrogen peroxide decomposes to form water
vapour, oxygen and a great deal of heat. The rapid expansion of the
water vapour produces a white smoke that rapidly escapes from the
flask, similar to genie in a bottle.
Magnesium burning in carbon dioxide gas.
||An excellent demonstration
to show that not all fires in the laboratory can be extinguished by
carbon dioxide gas. An opportunity to show this reaction exists when
studying safety in lab.
Also useful to demonstrate oxidation reduction reactions.
a fire with a drop of water
||A useful demonstration
for senior chemistry when studying redox reactions. It can also be
used as a demonstration in the introduction to safety in the lab.
This demonstration is useful in emphasizing the fact that students
should never mix chemicals with out permission.
||A great demonstration
to show the change in properties of a common substance when it is
slightly altered chemically.
||A fun demonstration to
show how sugar, a common compound, can form an element, carbon.
||A dynamic demonstration
revealing the energy release when iron oxide is reduced by aluminium
to iron. Demonstration can be used in senior chemistry for redox reaction
or for a great exothermic reaction in junior classes,
|29) Chemical snakes
||An interesting reaction along the same theme as slime. Great for the study of plastics, polymers and polymerisation.
|30) Drought in a cup
||A magic trick to demostrate the nature of hydrogels. Sodium polyacrylate is used to absorb water and demostrates one of the uses of plastics as used in nappies.
|31) Sticky water
||An interesting way to convey the strength of water's surface tension.
|32) Fireworks in milk
||An exciting and simple demonstration of the action of surfactants. Keep in mind that this is a simple experiment whose explanation can be very complex.
|33) Fireworks in a test tube
||A spectacular demonstration of oxidation of an alcohol. Can be used when covering redox reactions, oxidation numbers and oxidants..
|34) Blue water with a battery
||A demonstration involving redox reactions, electrolysis and acid-base indicators.
|35) Ammonia fountain
||Solubility of ammonia in water and its reaction as a weak base.
|36) Glycerol and permenganate
||Useful as a demonstration of the relationship of surface area and rate of reaction.