Free Science Videos and Lectures

Neutron slams into the nucleus of a heavy element which causes a nuclear fission creating two ligher elements (fission products) and more free neutrons.

These free neutrons are absorbed by other...

This science video contains:
nucleus, nuclear fission, neutrons, fission products, chain reaction

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

The experiment "Volcano" is created using just ammonium dichromate which when burned creates this spectacular volcano effect.

For your information, ammonium dichromate, sometimes known as Vesuvian...

This science video contains:
experiment, burning, fire, volcano, ammonium dichromate, vesuvian fire

Nitrogen triiodide, also called nitrogen iodide, is the chemical compound with the formula NI3.

It is a sensitive contact explosive: small quantities explode with a gunpowder-like snap when...

This science video contains:
explosion, ni3, nitrogen triodide, iodide, vapor

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