Free Science Videos and Lectures

Sodium does not react easily with oxygen at a room temperature so it has to be heated up a little for the reaction to start.

Since air is mostly oxygen once the reaction starts it gets pretty...

This science video contains:
explosion, heat, burning, reaction, fire, air, oxygen, sodium

Ever seen a shark like this?

This species of prehistoric shark called Frilled Shark and it is very rarely seen alive because its natural habitat is some 600 meters or more under the sea.

The...

This science video contains:
japan, ocean, shark, frilled shark, prehistoric, sea

The interior of an 18" square x 1" piece of Plexiglas was charged to 2.2 million volts (MV) using a 5 MV particle accelerator. A layer of excess electrons become trapped deep inside. When...

This science video contains:
electrons, potential, lightning, plexiglas, lichtenberg figure, sculpture, charge, voltage, flash

This video shows what different colors the alkali elements burn.

Strontium chloride, barium chloride, sodium chloride and potassium chloride are burned.

This video was done by YouTube user 'nitrex'.

This science video contains:
burning, colors, fire, alkali, strontium chloride, barium chloride, sodium chloride, potassium chloride

Watch how a "marshmallow" is made using just a few chemical elements.

First we take hydrogen preoxide, then we add liquid soup, we mix it together and finally add a little of potassium iodide and...

This science video contains:
reaction, marshmallow, marsh mallow, hydrogen peroxide, liquid soup, potassium iodide