SciShow
This Molecule Has Saved Billions of Lives, How Do We Make It Without Killing Ourselves?
Ammonia is extremely useful to us as a crucial ingredient in fertilizers. But producing it also has a significant carbon footprint, which is why scientists have been on the hunt for a way to make ammonia production greener.
SciShow
Sneaky Ways Chemists Are Making Our World Safer
The path that products take to get onto store shelves doesn’t always leave the best impact on the environment. But with green chemistry, chemists have found ways to make the production of some items safer for both people and the planet.
SciShow
Oxygen Enemas Could Save Lives
Scientists have known for some time that certain animals can breathe using their butts, but now, researchers have determined that certain mammals can too! And in very much other news, researchers in Washington state have developed a new...
SciShow
Making Reactions Go Faster Since the 1700s | Great Minds: Elizabeth Fulhame
The chemical process of catalysis happens in a myriad of places in our modern world - from industry to inside your cells. Our knowledge of catalysis today springs from Elizabeth Fulhame, who over 225 years ago became the first person to...
SciShow
Space Exploration Isn’t Great for the Earth (But It Could Be)
Building and launching rockets to learn about other worlds hasn't been great for Earth, but environmental engineers are working on changing that legacy.
SciShow
One Way to Deal With CO2? Reuse It
Is there any better way to create new energy than to make it out of consumed energy sources?
SciShow
Antimony: The Life-Saving Toxin
Antimony is toxic to inhale, swallow and touch, but it might also save your life.
SciShow
Big Idea: Gunpowder
Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science.
TED Talks
TED: A young scientist's quest for clean water | Deepika Kurup
Deepika Kurup has been determined to solve the global water crisis since she was 14 years old, after she saw kids outside her grandparents' house in India drinking water that looked too dirty even to touch. Her research began in her...
SciShow
Why Do People Riot?
Peaceful protests can help people have their voices heard, but sometimes a protest becomes a more aggressive riot. How does that happen?
Bozeman Science
AP Biology Lab 2: Enzyme Catalysis
Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. He...
Bozeman Science
Catalyst Classes
In this video Paul Andersen explains how the three types of catalyst classes act to speed up reactions. Acid-base catalysts either add or remove a proton from one of the reactants. Surface catalysts provide active sites where reactants...
Bozeman Science
The Rate Constant
In this video Paul Andersen describes the characteristics of the rate constant in chemical reactions. The rate constant is highly variable in reactions and must be determined experimentally. The rate constant is dependent on both...
Crash Course
Intro to Electrophilic Aromatic Substitution: Crash Course Organic Chemistry
We’ve talked about benzene a bit already in this series, but did you know that benzene rings are present in all kinds of familiar substances? The styrofoam packaging that comes with new appliances, some pharmaceuticals, pesticides, and...
SciShow
Turning Your Leftovers Into Fuel
Even if you don't want to eat them, your apple cores still have plenty of energy left to give. SciShow explores how cities are capturing that energy and turning it into fuel.
Bozeman Science
Catalysts
Paul Andersen explains how catalysts can speed up a reaction without being consumed in the reaction. Catalysts can lower the activation energy of reaction be stabilizing the transition state. They can also create new reaction pathways...
Amoeba Sisters
Enzymes (Updated)
The Amoeba Sisters explain enzymes and how they interact with their substrates. Vocabulary covered includes active site, induced fit, coenzyme, and cofactor. Also the importance of ideal pH and temperatures for enzymes are discussed.
Curated Video
Unlocking the Secrets of Photosynthesis: Towards Cheap Hydrogen Production
Researchers at London's Imperial College are using X-ray crystallography to understand how plants break down water into hydrogen and oxygen through photosynthesis. This breakthrough could lead to the production of cheap hydrogen, as they...
Curated Video
Rate of reaction
A measure of how fast a reaction is taking place. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
Curated Video
Enzyme Action: Trypsin
We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...
Curated Video
Elephant's Toothpaste
We create a rapidly expanding column of foam by mixing chemicals. Hydrogen peroxide and detergent are added to potassium iodide and food colouring to set off a reaction that creates vibrant expanding foam. Chemistry - Reactions -...
Curated Video
Collision Theory
Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated? Chemistry - ReactionsLearning Points. New substances are made when particles...
Curated Video
Catalyst
A substance that increases the rate of a chemical reaction without itself being permanently changed or used up. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Improve Reaction Speed :Temperature and Catalysts
Influence of Temperature & Catalyst on Rate of Reaction - N2O5 dissociation, Role of MnO2 catalyst,influence of surface area of zinc catalyst. 3 Factors influencing Rate of Reaction part 1