大象传媒

Video summary

Professor Brian Cox describes where life may have first evolved on Earth.

Brian explains that the key requirement for life, energy, is released when acidic seawaters meet the alkaline water pumping out of a hydrothermal vent.

He describes some other features of the vents that make them a possible location for the origin of life, including the presence of organic molecules and porous chambers in the rocks.

This clip is from the series Wonders of Life.

Back to top

Teacher Notes

This clip could be used as stimulus material for study of the Miller-Urey experiment, conducted to support the primordial soup theory.

The footage of the vents can also be used within a lesson on extremophiles.

Challenge students to suggest how an organism would have to be adapted to be successful in this environment before showing them existing organisms that live around the vents and seeing if their theories are close to the real life examples.

This clip will be relevant for teaching Biology at KS3 and KS4/GCSE in England, Wales and Northern Ireland and SQA National 3/4/5 in Scotland.

Back to top

Bacteria and the development of an oxygen rich atmosphere. video

Professor Brian Cox explains how the Earth developed an oxygen rich atmosphere due to organisms called Cyanobacteria.

Bacteria and the development of an oxygen rich atmosphere

Conservation of energy. video

Professor Brian Cox explains the first law of thermodynamics. He describes how energy is always conserved, never created or destroyed.

Conservation of energy

How has life on Earth become so varied? video

Professor Brian Cox explores how life on Earth is so varied, despite us all being descended from one organism, known as LUCA. He examines how cosmic rays drive the mutations that create evolution.

How has life on Earth become so varied?

Lemurs: Evolution and adaptation. video

Professor Brian Cox visits Madagascar to track down the rare aye-aye lemur, and see how it is perfectly adapted to suit its surroundings.

Lemurs: Evolution and adaptation

Jellyfish and photosynthesis. video

Professor Brian Cox sees photosynthesis in action, investigating a unique type of jellyfish that have evolved to carry algae within their bodies and feed off the glucose the plants create.

Jellyfish and photosynthesis

The arrival of water on Earth. video

Professor Brian Cox describes the similarities between isotopes of water on comets and our planet and suggests that the water in the oceans may have come from asteroids.

The arrival of water on Earth

Evolution of hearing. video

Professor Brian Cox explains the evolution of the mammalian ear bones, the malleus, incus and stapes by using a flicker-book to show how the gill arches of jawless fish altered in size and function.

Evolution of hearing

Evolution of sight. video

Professor Brian Cox shows the stages of the evolution of the eye, from a primitive light sensitive spot, to a complex mammalian eye.

Evolution of sight

Evolution of the senses. video

Professor Brian Cox compares the way that protists sense and react to their environment with the action potentials found in the nerves of more complex life.

Evolution of the senses

Gravity, size and mass. video

An explanation of how forces including gravity affect organisms. Professor Brian Cox explains that as size doubles, mass increases by a factor of eight.

Gravity, size and mass

Size and heat. video

Professor Brian Cox explores the relationship between an organism's body size and its metabolic rate.

Size and heat
Back to top