Watch Cookie struggle after the pirates had a late night out on the seven seas. They should be awake after eating 90% dark chocolate and drinking a strong (10 000%) coffee! This lesson will introduce the technique of gravimetric...

Life is tough for thirsty pirates – the sea is filled with water that can’t be drunk! Thankfully, Blackbeard has figured out a trick. This lesson will compare heterogeneous and homogeneous mixtures. We’ll also look at solutions, which...

Long Jane Silver landed a sweet cocoa deal with a local farmer, Senor Ortega. But when a supply ship barely survives a storm, the pirates and Ortega join forces to save the cocoa farm! This lesson will unearth the steps in gravimetric...

Long Jane Silver and Senor Ortega analysed the soil sample and saved the cocoa trees! But something’s not right… Did they perform the wrong steps? Was their sample contaminated? This lesson will assess the accuracy, reliability and...

Learn how to compose two functions where one or both of those functions is/are radical. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of...

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of the functions with the value of the...

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of the functions with the value of the...

In this video, we explore the concept of matter and how we sense and interact with it. This video is part of the 7-part series, Describing Matter.

In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is...

Learn the basics about the properties of oxygen. Oxygen is a gas, it has no smell, colour, or taste; but without it, we as humans would not be able to inhabit planet Earth. When cooled to a very low temperature, it will form a liquid and...

Dark matter is an invisible matter that occupies more than half of the space of the observable universe but cannot be detected directly as it doesn’t interact with electromagnetic radiation, like visible light and gamma rays. One of the...

Dark matter is an invisible matter that occupies more than half of the space of the observable universe but cannot be detected directly as it doesn’t interact with electromagnetic radiation, like visible light and gamma rays. One of the...

It explains various uses of the branch chemistry in the various fields.

Delve into the fascinating differences between physical and chemical changes in matter. This video explains how physical changes alter the form but not the chemical composition, using examples like melting butter and chopping vegetables....

Pupil outcome: I can understand how the biosphere regulates the atmosphere and provides important environmental services. Key learning points: - The biosphere regulates the composition of the atmosphere. - The biosphere maintains soil...

Matter in the hearts of neutron stars – dense remnants of exploded massive stars – takes the most extreme form we can measure. Now, thanks to data from NASA’s Neutron star Interior Composition Explorer...

In this video, the teacher explains the concept of matter and its composition. The video highlights how different types of matter make up various objects in our daily lives, such as wood, paper, glass, and plastic.



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What's the difference between a physical change and a chemical change? What are elements, compounds, pure substances, and mixtures? So many definitions to learn! Don't worry, Professor Dave will take you through the details.

In this episode of composing for the piano we introduce the original Music Matters theme. Over the course of this series, we're going to take the music matters theme and arrange it into different styles, discussing music composition...

Discover how Alberti Bass works and how useful it is in breathing energy into accompaniments. Often composers write a successful melody but the accompaniment is limited to block chords. Using Alberti Bass is one way of liberating the...

Classical melody writing tricks and music composition techniques. We begin with an exploration of how melody notes must either belong to the harmony or be identified as inessential notes. We then move on to consider how conjunct and...

Wondering what to do with a melody you've written? How could you go about turning it into a piece? In this music composition lesson we start with a melody in a minor key, then work out how best to harmonise it, considering various...

How to come up with a motif. Motifs need a musical identity, which is created through melodic design, rhythmic character, and articulation. All the notes within the motif need to be either harmony notes or inessential notes. The process...

This music composition lesson explains the issues involved in resolving a Diminished 7th chord. After explanation about constructing a Diminished 7th, about key referencing it, and about inversions of the chord, the video explores the...