Video List

When water is squeezed into an inverted flask containing ammonia, the ammonia dissolves in the water and the reduced pressure causes a fountain effect.

Atmospheric pressure causes the collapse of a metal can.

This demonstration shows the construction of of an eleven foot high barometer made with a concentrated solution of potassium tetraiodomercurate(II).

Water in a sealed flask is made to boil below its normal boiling point by cooling the water vapor in the flask.

Sulfur is burned in a deflagrating spoon in a flask, forming sulfur dioxide in the synthesis reaction.

Cadmium metal is placed in a lead(II) nitrate solution.

Liquid ethanol is poured into a saturated calcium acetate solution and a solid gel is formed. The gel burns like canned heat (Sterno™).

Photon emission is illustrated using an animation.

Calcium chloride imparts a yellowish-red color to a flame.

Copper(II) chloride imparts a bright green color to a flame.

Magnesium chloride imparts no color to a flame.

Sodium chloride imparts a bright yellow-orange color to a flame.

Comparing the densities of mercury, potassium tetraiodomercurate(II) solution, and water illustrates that barometers made from the three liquids have different heights.

The conductivities of a sulfuric acid solution and a barium hydroxide solution are tested, and will be the basis for monitoring a simple titration.

The reaction of a copper penny (minted pre-1982) and concentrated nitric acid (15 M) is shown. Red-brown nitrogen dioxide is generated and some of the copper dissolves to form a blue solution of copper(II) nitrate.

As the temperature of the benzene increases, the meniscus flattens, then disappears as the system reaches the point where liquid and vapor are in equilibrium.

A chemical hot pack uses the crystallization of sodium acetate to provide a portable heat source.

The magnetic properties of nickel change when it is heated above its Curie point.

Heating the body of a novelty store drinking bird causes it to tip over and drink.