How do you work out how safe or dangerous a chemical or some other substance is? This week's Risk Bites takes a look at chemical safety, and estimating health risk from chemical exposure. This week's Risk Bites team: David Faulkner (post-production) Andrew Maynard (all the other stuff) Risk Bite
How do you know if the chemicals in the stuff you use and eat are safe? Only a small fraction of the thousands of chemicals in use today have been thoroughly tested for safety. Part of the problem is that how we test chemicals now is slow, expensive, and relies an awful lot on animal testing. How
Have you ever wondered why you can understand the words other people say? How is it possible that our brains can turn noise into language? Click here to see more videos: https://alugha.com/producer/ab74e560-21e6-11e8-9e5c-976417fdd1d9 Life Noggin is a weekly animated educational series. Whether it
The understanding of performance in sport is discussed and some central terms such as performance, performance, success, competition and competition are described. The narrow and broad understanding of performance is also discussed. Original: "Sports didactics simply explained" (Humboldt Universit
Large stars die, and then explode into massive supernovae. This scatters all the elements of the periodic table throughout the Universe, which results in the third threshold of complexity -- the creation of chemical elements. Website: https://www.bighistoryproject.com/portal Facebook: https://www.f
Learn the basics about Indicators, more specifically for acid and bases. An indicator is a large organic molecule that works somewhat like a " color dye". Find out more in this video! This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY
Learn the basics about balancing equations, as a part of chemical calculations. The law of conservation of mass states that no atoms are lost or made during a chemical reaction. There are different ways of arranging the atoms. Chemical reactions are about rearranging atoms. Chemical reactions can
Continue learning about balancing equations, as a part of chemical calculations. The law of conservation of mass states that no atoms are lost or made during a chemical reaction. There are different ways of arranging the atoms. Chemical reactions are about rearranging atoms. Chemical reactions ca
The three types of a chemical reaction (analysis, synthesis and conversion) are only presented theoretically! An application and chemical experiments for this take place in the attendance phase at school! Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done b
In this video, we will look at the state symbols (s), (l), (g), and (aq) and what they represent in a chemical equation. For equations to be complete, we must also include the state symbol for each reactant and product. There are four possible states, each with their own unique state symbol. So
Learn the basics about testing alkenes with bromine water. Why is bromine water used to test alkenes? What is bromine water made of? Find out more in this video! This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Dee
Buy the Chemical Kit here: http://bit.ly/19wERRM This is the Iodine Clock Reaction, discovered by Hans Heinrich Landolt in 1886. We will explain the chemicals used and how they react with one another. Why does it take so long for the final change to take place. Tune in and find out. Facebook: http
