Secondary Catalogue

Heat waves, tropical cyclones, droughts, tornadoes, hailstorms, floods, and severe thunderstorms. These are all examples of extreme weather that shape our landscape. But what exactly are they and how do they happen? This Miniclip explores each of these extreme weather types and examines the natural and human influences that cause them including climate change, the Earth’s atmosphere, ocean currents and more. Show Less

Some of Earth’s magnificent landforms are caused by erosion and weathering. But what is erosion and how does it change the Earth’s surface so drastically? This Miniclip explains the process of erosion including the various mechanisms such as water, wind, ice, and mass movement; defines sediment and deposition as part of this process; and explains how human influence has increased its prevalence through global warming and deforestation. Show Less

Some of Earth’s magnificent landforms are caused by weathering and erosion. But what is weathering and how does it create magnificent structures on our planet? This Miniclip explains the process of weathering including the two main types: mechanical and chemical. Students will learn the different natural impacts on this process such as water, temperature change, wind, oxidation, and more. Show Less

For many new agricultural technologies, feasibility issues need to be considered before they can be adopted by farmers and businesses. This video explains why scientific verification and practical adoption of technology are both important and discusses the long-term aims of new technologies, with insight from scientists at agricultural research institutes. A highly relevant resource for senior secondary and tertiary students studying design technology, earth and environmental sciences or agriculture. Show Less

New technologies in the agricultural industry can have environmental, social and economic impacts. This video explores the technology that targets methane emissions, how fruit yield and quality can lead to greater profitability and how commercial farmers actually interact with technology, with insight from scientists at agricultural research institutes. A highly relevant resource for senior secondary and tertiary students studying design technology, earth and environmental sciences or agriculture. Show Less

Agricultural processes have a large-scale impact on natural resources and ecosystems and many businesses are turning to technology to help. This video introduces some issues that agricultural technologies aim to address, including water scarcity, farm waste and sustainability, with insight from scientists at agricultural research institutes. A highly relevant resource for senior secondary and tertiary students studying design technology, earth and environmental sciences or agriculture. Show Less

Before agricultural technologies can be adopted by businesses, they need to be thoroughly tested and evaluated. This video looks at the techniques and systems researchers use to collect and evaluate data, such as internet-connected sensors and the SF6 tracer, with insight from scientists at agricultural research institutes. A highly relevant resource for senior secondary and tertiary students studying design technology, earth and environmental sciences or agriculture. Show Less

This programme is about seawater. It is the most important liquid on Earth, not only from its sheer volume, but also because it has remarkable qualities. A few of them, like buoyancy, are common to all liquids - but seawater is also the cradle of life. Three key factors of water underpin life in the sea: water’s dissolving power, its tendency to keep a stable temperature, and its transparency to light. This programme explains the mechanisms and the outcomes of these key facts—and other things—that make seawater both weird and wonderful. Show Less

"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

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. In a thermal decomposition reaction, heat is required to break the chemical bonds in the elements or compounds undergoing the decomposition. Therefore, we can say that the thermal decomposition reaction is endothermic in nature. Show Less

On a full moon, when the Moon passes directly behind the Earth into its shadow, a lunar eclipse occurs. When the moon is entirely within the umbra, it causes a total lunar eclipse. When only a small part of the Moon’s surface is covered by the umbra, a partial lunar eclipse occurs. Show Less

Glaciers and polar ice caps hold more than three - quarters of the Earth’s freshwater. Due to an overall increase in the global temperature, most glaciers in the world today are melting. This is, in turn, affecting the water systems, leading to widespread floods, followed by long - term freshwater shortage. The melting of glaciers also affects the ocean water, causing problems to the marine organisms. Show Less

Of all the man-made satellites in Low Earth Orbit, 95% are space junk: rocket thrusters, derelict satellites, and most of all, tiny fragments of debris from collisions and explosions. All this debris poses a potential threat to the future of space travel if we don't find a way to clean it up before it's too late. Kessler Syndrome, the threat of cascading orbital debris fallout, is an environmental crisis that's almost completely invisible to us, but which may carry dire consequences for our infrastructure and the future of spaceflight if left unchecked. Show Less