Bozeman Science
Physical and Chemical Changes
Mr. Andersen explains the difference between physical and chemical changes. A brief discussion of chemical reactions and equations is also included.
Curated Video
Complete combustion
A combustion reaction in which all of the products are fully oxidised and the maximum amount of energy is released. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Bunsen burner
A small gas burner commonly used in laboratories for heating and sterilising. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Chemiluminescence
The release of light with very little heat as the result of a chemical reaction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Alkali metal
A highly reactive group of metals that make up group one in the periodic table. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Electricity: The Costs
Where does the electricity we use come from? Are we damaging our environment just to keep the lights on? Earth Science - Earth's Resources - Learning Points. Electricity is essential to our society and the way we live. Electricity...
Curated Video
Oxygen and Combustion
Combustion reactions are vital: from keeping us warm and cooking our food, to providing electricity and propelling rockets into outer space. What do we know about these chemical reactions? Chemistry - Reactions - Learning Points....
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Oxidation Reactions
Why do we cook our food wrapped in aluminium foil? Why does metal rust? It all comes down to oxidation reactions. Discover what happens to cause these reactions, and how to stop them. Chemistry - ReactionsLearning Points. The combustion...
Curated Video
Energy Change of Reactions
Some reactions take in energy and some release energy. Why? And what are some common examples of each type of reaction? Chemistry - Reactions - Learning Points. An energy change occurs when reactions take place. Exothermic reactions...
Curated Video
How Do Fireworks Work?
Fireworks combine chemical processes, from combustion to spectroscopy, to create spectacular displays. Discover what happens when the fuse is lit. Chemistry - Reactions - Learning Points. Fireworks involve combustion and exothermic...
Curated Video
The Greenhouse Effect
Without the greenhouse effect, our planet would be too cold to inhabit, but it's currently a major cause of global warming. What is the greenhouse effect, and why is it such a conundrum? Earth Science - Human Impacts - Learning Points....
Curated Video
Mass of Wire Wool
We look at how the mass of wire wool changes when it is burned. Wire wool is almost 99% iron. When we burn it, it combines chemically with oxygen from the air to form iron(III) oxide. The mass of the product is more than the mass of the...
Curated Video
Dry Ice and Magnesium
We use magnesium and blocks of dry ice to show how a redox reaction occurs. A cavity in a block of dry ice is filled with coils of magnesium ribbon, which are set alight. A second block is then placed on top, but instead of this putting...
Curated Video
Combustion
Or burning, a chemical reaction that requires an initial source of heat, a fuel, and an oxidising agent such as oxygen, and releases energy as heat, and often light. A Twig Science Glossary Film. Key scientific terms defined in just 60...
Curated Video
What is burning?
What are the three factors needed to make something burn? Material processes - Changing materials - Burning Learning Points Burning is a chemical reaction. Burning requires oxygen, a fuel source and heat. An exothermic reaction releases...
Science ABC
Does Water Make Grease Fires Worse?
Water and oil do not mix (immiscible liquids) because water is polar and grease oil is non-polar. They do not form intermolecular bonds and instead repel each other. There is a separation of oil and water layers. The denser liquid falls...
Curated Video
The Warmth of Wood: Innovations in Home Heating
Explore the sustainable and economical benefits of wood heating as we delve into the efficiency and environmental impact of using wood as a primary energy source in homes. This documentary features a detailed comparison between...
Curated Video
Do Cars Really Explode After Collisions Like in Movies?
Contrary to popular belief (as set by movies), cars are not very prone to explosions, and even a car that is on fire is very unlikely to explode. The necessary conditions for an explosion to take place are not met after a car experiences...
Curated Video
Introducing the Enhanced Generation of Volvo's Five Cylinder Diesel Engines
The Volvo Car Corporation has introduced a new generation of five-cylinder diesel engines for select models, boasting enhanced performance and reduced emissions. Featuring upgrades such as a refined air and exhaust system, a new...
Wonderscape
Energizing the Future: Batteries and Electric Transportation
This video demystifies the workings of electric batteries and their role in modern e-transportation. Learn how batteries, from simple potato experiments to advanced lithium cells, generate electricity through chemical reactions. The...
Curated Video
GCSE Chemistry - Alkanes: properties & combustion #52
In this video, you'll learn: - The properties of alkanes, and the specific trends you can observe as the length of carbon chain increases - The equation for the combustion of alkanes - How to write balanced equations for the combustion...
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How Does YOUR Car's Engine Work?! | The Car Engine Song | KLT
Let's learn how Learn how car engines work!
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What Would Happen If The Amount Of Oxygen On Earth Doubled?
If we had twice the amount of oxygen, we have now, several significant changes would occur. Animals would grow larger as the increased oxygen supply would support their growth. Neutrophils, specialized white blood cells, would exhibit an...
Curated Video
What Happens (Chemically) When Wood Burns?
When wood comes in contact with fire, it undergoes thermal degradation, or pyrolysis. The pyrolysis of wood leads to the release of certain volatile gases and the formation of char, which eventually undergoes flaming and glowing...