Free Science Videos and Lectures

This video shows how various molecules look. For example, water consisting of two hydrogen atoms and one oxygen atom.

The others are: glucose, sucrose, amylose, stearic acid, oleic, glycerol,...

This science video contains:
hydrogen, molecules, dna, oxygen, atoms, glucose, sucrose, amylose, stearic acid, oleic, glycerol, trigglyceride, phospholipid, alenine, serine, leucine, phenyaleine, hexapeptide, peroxide, dioxiribose, thymine, atp, amylpectin, cellulose

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

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