Astronauts onboard the ISS get their breathable oxygen in two main ways - through systems onboard the ISS that generate breathable oxygen and through resupply missions that deliver breathable oxygen to the ISS. There is plenty of oxygen...

The video is a lecture presentation on fish farming. It discusses why fish is a good source of protein and nutrients for humans and other animals, as well as how fish farming helps conserve wild fish stocks. The video also talks about...

The video discusses common chemical reactions involving metals such as oxidation and reduction, the formation of positive ions, and redox reactions. It also shows the results of experiments where different metals react with water and...

In this video, the concept of transport of substances into and out of cells is explained. The different ways in which this process occurs are discussed, including diffusion, osmosis, and active transport. The importance of surface area...

Nitric Oxide Synthase: Physiology, Biochemistry, and Mechanism

Carbohydrate Structure Aldopentoses and Ketopentoses

This video explains the importance of oxygen in aerobic respiration, which is the process of breaking down food to produce energy in our bodies. It highlights how simple sugars and oxygen are broken down to release energy, along with the...

This video explains the classification of different organic reactions into different groups such as oxidation, reduction, substitution, elimination, and addition. The video goes on to explain four different types of reactions, including...

The video discusses the conservation of mass in chemical reactions and the application of this principle in calculating the mass of reactants and products. It also explores the features of chemical equations such as balancing and state...

Water is formed as a result of the combustion of hydrogen. In simple words, water is what you get when you burn hydrogen. So, water doesn’t burn because, in a way, it has already burned. You get ashes when you burn paper; but when you’re...

Take in a deep breath of salty ocean air and more than likely you're also breathing in naturally occurring sea spray aerosols. But, there's much more in each of those tiny bursting ""bubbles"" than salt. They're also bursting with ocean...

A video created for, and aimed at primary school science students learning all about plants. This video explores how plants grow and the key elements they need.

This video discusses the significant sources of pollution in our oceans, focusing on the impact of chemical waste and plastic pollution. It highlights the consequences of pollution on marine life, human health, and the environment. The...

Often hard-to-understand concepts of air, gases, air pressure, and layers of the atmosphere are plainly explained in this fascinating video. Concepts and terminology: oxygen, nitrogen, layers, weather, jet stream, and northern lights.

This series of videos explores the diversity of plants and introduces the important characteristics plants have in common: photosynthesis, cell walls, and reproducing by seeds and spores. The importance of plants in everyday life is...

This video provides an overview of the combustion of fuels, including what fuels are and their various uses, the differences between complete and incomplete combustion, and how to balance an equation for the combustion of a particular...

This video program explores the role of the body's circulatory and respiratory systems, emphasizing things we can do to maintain these important systems. Regular exercise, healthy eating habits, and not smoking are just a few of the...

This video explains why we need to breathe and how our respiratory system works. The video also describes the process of air flowing through the trachea, bronchial tubes, and lungs, where oxygen is absorbed into the bloodstream and waste...

This program addresses many of the cycles conducted by animals including those of migration, hibernation, and patterns relating to day and night. The cycles that affect all living things are discussed including the air we breathe and the...

A look at the chemical properties of elements in group 1 of the periodic table (the alkali metals) showing how the metals tarnish in air, and trends of reactivity and melting point. KS3 and KS4 Chemistry

Through photosynthesis, plants take in carbon dioxide from the air and split it and use it (and water) to make carbohydrates. So surely plants can help us reduce carbon dioxide in the air? Possibly... But equally, the carbon in plants is...

Laughter is universal and unifying; it helps break the ice and is notoriously contagious. If you see a person or group of people laughing, the odds are high that you might also join the laughter train. Laughing along helps us cope with...

A series aimed at Primary School students learning all about the Ocean and its inhabitants in their science classes. This video in particular will take students through the basics of seaweed forests, something they may never have heard of.

Stents are a popular treatment for angina pectoris, or chest pain usually resulting from narrowed arteries. Getting a stent is a serious procedure, with no small risk associated with it. And recent studies indicate that stents don't do...