Free Science Videos and Lectures

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

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

Since sodium reacts slower than other alkali metals, the reaction is so intense. It just burns for a while.

This video was done by University of Oxford.

This science video contains:
burning, chlorine, reaction, fire, alkali, sodium

Sodium is a chemical element which has the symbol Na (Latin: natrium), atomic number 11, atomic mass 22.9898 g/mol, oxidation number +1.

Sodium is a soft, silvery white, highly reactive element...

This science video contains:
explosion, water, burning, reaction, fire, alkali, sodium, na