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
What's is dose response, and what's it got to do with hazard and health risk? This is the first of a series of Risk Bites videos on understanding what dose response is, and why it's useful! This is part of a series of Risk Bites videos that tackle dose response and response models. This week's Ri
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
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
Reactions - basics, charge, electrophiles, nucleophiles explained simply - organic chemistry. In reactions, you consider which molecules are to react with each other. If there is a positively charged atom or a positive charge, there is an electron deficiency. The deficiency can be balanced by an ele
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
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
Let’s Enjoy Hockey - NOW! We don’t want to keep you in suspense any longer...The pilot episode of Let’s Enjoy Hockey covers the basics of the game. Number of players, playing time - information for field hockey beginners! And of course, you’ll meet Katrin and Maria for the first time. Have fun!
Buy it here: http://amzn.to/17cGEhg Let's observe the effects of Sodium polyacrylate and water. Sodium polyacrylate can absorb it's own weight 300x over making it an amazing chemical to aid in water cleanups. What would you use it for? Facebook: http://facebook.com/HackThePlanet Twitter: http://twi
