Tertiary Catalogue

"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 winters are colder in the northern hemisphere, and a whole lot more Show Less

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 Coriolis effect affects water draining from a small container. Does water really swirl in a different direction depending on which hemisphere it is in? Show Less

"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 panels. Show Less

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. Clear explanations of the theory behind the process make this essential viewing for senior secondary chemistry students. Show Less

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 chloride changes when products are added. Footage of a real lab demonstration makes this essential viewing for senior secondary chemistry students. Show Less

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. Easy-to-understand explanations and worked-through examples of Kc calculations make this essential viewing for senior secondary chemistry students. Show Less

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 of competing equilibria make this essential viewing for senior secondary chemistry students. Show Less

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 dioxide and dinitrogen tetroxide under different pressure conditions. Footage of a real lab demonstration makes this essential viewing for senior secondary chemistry students. Show Less

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 at different temperatures. Footage of a real lab demonstration makes this essential viewing for senior secondary chemistry students. Show Less

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 solution of zinc hydroxide changes when hydrochloric acid are added. Footage of a real lab demonstration makes this essential viewing for senior secondary chemistry students. Show Less

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 explanations and clear examples make this essential viewing for senior secondary chemistry students. Show Less

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 thiocyanate changes when reactants are added. Footage of a real lab demonstration makes this essential viewing for senior secondary chemistry students. Show Less

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 equilibria in daily life make this essential viewing for senior secondary chemistry students. Show Less

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 plants and phytoplankton still produce almost all our oxygen. This programme tells the story of the cyanobacteria, how they changed our planet and are involved in supporting its many life forms. We look at the four major groups that photosynthesise in the sea: cyanobacteria, eucaryote phytoplankton (microalgae), seaweeds (macroalgae), and seagrasses. These groups are responsible for supplying around half the oxygen we breathe—so in terms of understanding the processes that keep us alive, this is a very important story. Show Less

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 to some parts of our bodies than to other parts, curling up into a ball, and spreading out your arms and legs all play their part in keeping our bodies at the right temperature! But what happens when we reach our limits? Show Less

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 scientific research by following four scientists who are well versed in presenting their findings to those who need to know about it. Show Less

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 students will find this programme insightful viewing before delving into their own STEM investigation. Show Less

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 secondary viewers will gain valuable information about the methods and technologies available for data analysis and how to avoid research bias. Show Less

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, viewers will re-join four scientists researching different angles of urban light pollution as they talk through the planning behind their experiments and the types of evidence they collected. Show Less

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 heated. Understanding heat transfer is essential if you want to cook good food and if you want to stay warm when it's cold and stay cool when it's hot. Show Less

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 temperature you can get! Show Less

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 rules that most other substances do! Show Less

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 expansion to good use for the good of the world! Show Less