Infection & Response: Fungi🤒 GCSE Biology Le...

In this episode, we will discuss the alveoli in the circulatory system.Alveoli are microscopic air sacs within the lungs where the crucial exchange of oxygen and carbon dioxide occurs between air and blood through diffusion. Their structure is highly adapted for this vital proces ...  Show more

In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ...  Show more

In this episode, we outline the essential stages of sewage treatment. Proper disposal of waste water is crucial for environmental protection. Initially, screening removes large debris, followed by sedimentation which separates solids (sludge) from liquid (effluent). Subsequently, ...  Show more

In this episode, we delve into the history of the periodic table, exploring the contributions of John Newlands and Dmitri Mendeleev. Discover how the table evolved from organising elements by mass to its modern form based on atomic numbers.

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In this episode, we discuss overexploitation and alternative extraction methods. Historical overuse of copper-rich ores has led to a scarcity of these resources. As a result, scientists have developed alternative methods to obtain copper from less concentrated sources. Phytominin ...  Show more

This episode outlines several significant obstacles hindering the reduction of global carbon footprints. We identify disagreements among scientists regarding climate change as a scientific barrier. Economic concerns, particularly the potential impact on development, are highlight ...  Show more