Tertiary Catalogue

Science


Land and Ocean

Shedding Light on the Sun and Earth

"Land and Ocean" examines who the world's land masses and oceans affect global climate patterns. We look at why the air gets colder and colder the higher you go, why coastal regions don't heat up or cool down as much as inland regions, why...Show More

The Coriolis Effect

Shedding Light on the Sun and Earth

In this episode, we describe how tropical cyclones form and examine their huge power. We explain what the Coriolis effect is and how it make tropical cyclones rotate the way that they do. We also travel to three continents to demonstrate how...Show More

Following the Sun

Shedding Light on the Sun and Earth

"Following the Sun" looks at how the sun's movement across the sky every day changes. In summer, the sun reaches a much higher angle in the sky than it does in winter. This affects the design of energy-efficient homes and the placement of solar...Show More

Seasons

Shedding Light on the Sun and Earth

In the first episode of this series, we briefly look at how the changing seasons affect life on our precious Earth and then examine what causes seasons, the turning of the days, and the three main climate zones.

Long Hot Summer Days

Shedding Light on the Sun and Earth

In "Long Hot Summer Days" we explain why summer days are long and winter days are short, and how the length of daytime contributes to seasonal variations in temperature.
The Haber Process

The Haber Process

Chemical Equilibrium

How is chemical equilibrium important for making ammonia? This video demonstrates how an understanding of chemical equilibrium and Le Chatelier’s principle is applied in the Haber-Bosch Process, making the production of ammonia more efficient....Show More
Changing Equilibrium Systems: Increasing the Amount of a Product

Changing Equilibrium Systems: Increasing the Amount of a Product

Chemical Equilibrium

What happens when you add more product to an equilibrium? This video demonstrates how an increase in products affects reaction rates in accordance with Le Chatelier’s principle. Students will observe how the appearance of a solution of sodium...Show More
Equilibrium Law

Equilibrium Law

Chemical Equilibrium

What is an equilibrium constant and how do we work it out? This video explains various aspects of the equilibrium constant, including what it is, how to calculate it and how it can be affected by other factors like temperature and pressure....Show More
Competing Equilibria

Competing Equilibria

Chemical Equilibrium

How is chemical equilibrium important for cellular respiration? This video explains how two competing equilibrium reactions involving haemoglobin are at work in the process of cellular respiration. Clear explanations of this life-or-death example...Show More
Changing Equilibrium Systems: Increasing the Pressure

Changing Equilibrium Systems: Increasing the Pressure

Chemical Equilibrium

What happens when you increase the pressure on an equilibrium? This video demonstrates how changing pressure affects reaction rates in accordance with Le Chatelier’s principle. Students will observe the colour of a gaseous mixture of nitrogen...Show More
Changing Equilibrium Systems: Changing the Temperature

Changing Equilibrium Systems: Changing the Temperature

Chemical Equilibrium

What happens when you turn up the heat in an equilibrium? This video demonstrates how changing temperature affects reaction rates in accordance with Le Chatelier’s principle. Students will observe the colour of a solution of cobaltous chloride...Show More
Changing Equilibrium Systems: Removing a Product

Changing Equilibrium Systems: Removing a Product

Chemical Equilibrium

What happens when you remove products from an equilibrium? This video demonstrates how a decrease in the amount of product affects reaction rates in accordance with Le Chatelier’s principle. Students will observe how the appearance of a...Show More
Le Chatelier's Principle

Le Chatelier's Principle

Chemical Equilibrium

What does Le Chatelier have to do with chemical equilibrium? This shows how various changes can affect the balance of a reaction in equilibrium and favour one reaction over another, as predicted by Le Chatelier’s principle. Easy-to-understand...Show More
Changing Equilibrium Systems: Increasing the Concentration of a Reactant

Changing Equilibrium Systems: Increasing the Concentration of a Reactant

Chemical Equilibrium

What happens when you add more reactant to an equilibrium? This video demonstrates how an increase in reactants affects reaction rates in accordance with Le Chatelier’s principle. Students will observe how the colour of a solution of ferric...Show More
Reversible Reactions

Reversible Reactions

Chemical Equilibrium

What does it mean if a reaction is in equilibrium? This video introduces key concepts such as reversible and irreversible reactions, forward and reverse reactions and equilibrium. Easy-to-understand explanations and examples of chemical...Show More

Photosynthesis

Life in the Sea

Photosynthesis supplies all oxygen for life, and it began in the sea. Amazingly, it all relies on one basic kind of chemical reaction that was achieved over two billion years ago by cyanobacteria, and cyanobacteria living as endosymbionts in...Show More
Heat and the Human Body

Heat and the Human Body

Shedding Light on Heat

In the final episode, 'Heat and the Human Body', we look at the brilliant systems within our bodies that allow us to maintain a more-or-less constant body temperature regardless of the weather conditions. Sweating, shivering, pumping more blood...Show More
Presenting Science

Presenting Science

How Scientists Work

After all the work of conducting an investigation, a scientist’s role is not over yet. Essential viewing before concluding their own STEM investigation, this programme introduces students to the many benefits and ways of communicating their...Show More
Choosing What to Investigate

Choosing What to Investigate

How Scientists Work

Exploring the broad issue of urban light pollution through the work of four dedicated researchers, this programme reveals how and why each scientist chose their niche and turned it into a measurable research question. Middle and Senior-secondary...Show More
Considering the Evidence

Considering the Evidence

How Scientists Work

Even the most well planned experiment means little if the evidence collected isn’t properly analysed. Following the progress of four scientists researching the problem of urban light pollution from four different angles, middle and senior...Show More
Collecting the Evidence

Collecting the Evidence

How Scientists Work

Experiments come in many shapes and sizes, but they all have special considerations and constraints that need to be meticulously planned for before any field or lab work can begin. Ideal viewing before undertaking their own STEM investigation,...Show More
Heat Transfer

Heat Transfer

Shedding Light on Heat

In the fifth episode, we look at the three ways that heat energy can transfer from one thing to another: conduction, convection, and radiation. A heat source is useless if heat energy can't transfer from the heat source to whatever you want...Show More
The Kelvin Scale

The Kelvin Scale

Shedding Light on Heat

In episode four, 'The Kelvin Scale', we look at the temperature scale that is superior to the Celsius and Fahrenheit scales in many ways. Zero on the Kelvin scale is equal to -273°C. And why is -273°C so special? Because that's the coldest...Show More
Changes of State

Changes of State

Shedding Light on Heat

In 'Changes of State', we look at the differences between solids, liquids, and gases, as well as why things change state when they absorb or lose heat energy. We also look at the strange example of carbon dioxide, which doesn't follow the same...Show More
Thermal Expansion

Thermal Expansion

Shedding Light on Heat

In episode three, we look at thermal expansion—the way that substances expand when heated and contract when cooled—and we explain why it happens. We look at how thermal expansion can be a real nuisance, but also how we can put thermal...Show More