Acids and alkalis
Duration: 03.02Clip duration: 03.02
How carbon dioxide levels in the atmosphere are causing the pH of the oceans to change.
Alkali metals and their reactions to air and water
Duration: 02.15Clip duration: 02.15
The relative speeds of surface corrosion of alkali metals and their reaction with water.
An interview with a mechanical engineer
Duration: 00.31Clip duration: 00.31
Interview with a mechanical engineer who explains links between engineering and medicine.
Duration: 01.48Clip duration: 01.48
A brief introduction to the mass of atoms and how they vary in different elements.
Can you make a star on Earth?
Duration: 04.26Clip duration: 04.26
Presenter Greg Foot demonstrates that a star is just like a continuous chemical reaction.
Combustion of natural gas
Duration: 02.16Clip duration: 02.16
The burning of methane as a chemical reaction.
Conservation of mass in chemical reactions
Duration: 02.48Clip duration: 02.48
The concept of conservation of mass in chemical reaction using two examples.
Development of photography by Daguerre and Fox Talbot
Duration: 06.12Clip duration: 06.12
The scientific invention of photography by Louis Deguerre and William Henry Fox Talbot.
Electrolysis and electroplating
Duration: 02.08Clip duration: 02.08
A demonstration of electroplating a copper coin with zinc.
Endothermic and exothermic reactions
Duration: 03.38Clip duration: 03.38
An endothermic reaction and an exothermic reaction are shown and explained.
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