Free Science Videos and Lectures

When potassium is heated is starts reacting with oxygen. Since air is mostly oxygen, the reaction happens pretty quickly and it starts burning.

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

A small amount of lithium is heated and it reacts very quickly with oxygen creating a burst.

This video was created by University of Oxford.

This science video contains:
burning, lithium, reaction, fire, air, oxygen

Lithium reacts with chlorine, a violent reaction happens and lithium starts to burn instantly.

This video was done by University of Oxford.

This science video contains:
burning, lithium, chlorine, reaction, fire, university of oxford

The ice bomb illustrates the fact that the volume of ice is greater than the volume of an equal mass of liquid water.

Some cold water is poured into a cast iron bomb and a threaded plug is screwed...

This science video contains:
explosion, water, iron bomb, ice, iron, plug, dry ice, aceton, freeze, pressure

On one of the Moon missions, NASA astronauts decided to prove Galileo Galilei right.

He reasoned that if there was no atmosphere, no dragging force then two objects of different mass falling from...

This science video contains:
ground, force, nasa, moon, galileo galilei, astronaut, atmosphere, gravity, hammer, feather