Free Science Videos and Lectures

Scientists listened to animals playing and they noticed something that appeared to them to be laughter. They studied this behavior for couple of years before acturally realizing that it is...

This science video contains:
frequency, rat, rats, scientist, laugh, laughter, laughing, sound, tickle, tickling

We travel inside nucleus to see how the DNA replicates.

When DNA replicates its strands are separated by enzine helicase.
Single-stranded DNA binding proteines keep the strands from...

This science video contains:
dna, replication, enzine helicase, strand, polymerase, encode, okazaki fragments, rna primase, rna primer, dna ligase

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

Here is an experiment where sodium reacts with four different acids - 6M HCl, 12M HCl, 6M HNO3 and 15M HNO3.

The reaction with 15M HNO3 is the fastest and 12M HCl is the slowest reaction and it...

This science video contains:
experiment, reaction, sodium, HCl, HNO3, acid, fast, slow, hydrochloric acid, nitric acid

In this experiment we are going to react aluminium with liquid bromine to make aluminum-bromide.

First a layer of bromine is poured into the bottom of a beaker. Then some aluminium powder is...

This science video contains:
liquid, reaction, aluminum, exothermic, aluminium, bromine, bromide, powder, beaker, fume, coating