Secondary Catalogue
Chemistry
Fossil Fuels: Part Two
For centuries, humans have relied on fossil fuels to power our world. Oil and gas are hydrocarbons that have helped fuel our modern way of living, but burning them has a devastating impact on the natural world.
Fossil Fuels: Part One
For centuries, humans have relied on fossil fuels to power our world. Coal fuelled the Industrial Revolution but also had a devastating impact on people and the natural environment. Let’s dig a little deeper into our use of coal.
The Carbon Cycle
The Carbon Cycle is the process by which carbon is constantly absorbed, stored and recycled by living and non-living things, thereby maintaining the delicate balance that supports all life on Earth.
The Greenhouse Effect
Earth’s atmosphere acts like a greenhouse, deflecting the fiercest of the Sun’s rays while retaining heat that would otherwise escape at night. This is known as the greenhouse effect and it’s a process that’s essential to life on Earth.
Doctors and Science
Science helps people in many occupations, such as nurses, doctors, dentists, mechanics, gardeners, clothing designers, builders and engineers. In this video we answer some questions about how doctors use science in their occupation.
What Is Paper Chromatography?
Paper chromatography is a way of identifying and separating compounds into different chemicals, based on how far each chemical travels up some filter paper dipped in solvent.
How Do Two Gases Diffuse?
The diffusion of molecules is crucial for life. So what affects the diffusion of molecules and what cause gases to diffuse at different speeds?
How Are Ionic and Covalent Bonds Formed?
Ionic and covalent bonds both involve the moving of electrons, allowing two atoms to each achieve complete outer shells. But how does this happen?
What Happens When Metal Reacts with an Acid or Water?
This film explores how metals react with water, acids and oxygen, in terms of the reactivity series.
How Are Chemical Equations Balanced?
If you're studying chemistry, you need to know how to balance your equations. This short film will explore how it is achieved.
What Factors Affect Reaction Rate?
What factors affecting rate of a reaction limited to temperature, concentration, pressure and surface area.
How Is Iron Produced in a Furnace?
Have a blast in understanding how iron is produced in a furnace.
How Do Equilibrium Reactions Work?
We explore how equilibrium reactions work, with reference to reversibility and changing conditions of temperature, pressure or concentration.
How Is Ammonia Produced in the Haber Process?
What is the Haber Process and how does it work?
What Is an Acid-Base Titration?
In a laboratory how do we carry out an acid-base titration? We investigate.