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Video: Representing Structures of Organic Molecules
Khanacademy Organización
- 3969 visitas
This 7 minute tutorial explains chemistry nomenclature and notation using the example of simple carbon chains such as methane and propane. We can listen to specific vocabulary (e.g. "bond",…
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Salts in water solution
Tiching explorer Organización
- 1 lo usan
- 2947 visitas
In this lesson we learn about dissociation constants of conjugate acids and bases, salt hydrolysis, salts of strong/weak acids and strong/weak bases and the pH of salt solutions. We can watch the videos…
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Game: The PCR method
Tiching explorer Organización
- 2706 visitas
This is an educational game, starting with an animated lecture, is based on the 1993 Nobel Prize in Chemistry, which was awarded to the invention of the PCR method that made it possible to copy large…
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Video: The Oracle of Delphi
Esl video Organización
- 2792 visitas
This 2 minute documentary by National Geographic explains how the Oracle of Delphi, the Pythia went into a trance by smelling vapours of ethylene. We can listen to simple present and past voices, in…
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Video: Hazardous materials
Esl video Organización
- 2001 visitas
This 2 minute video describes chemicals which can be dangerous both at home and at work. They are classified according to the kind of risk. We can listen to specific vocabulary about chemistry and to…
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How to Calculate the Concentration of a Solution
V&V Books Vicens Vives Organización
- 1 lo usan
- 1289 visitas
In Chemistry, a solution is a homogeneous mixture of two things - a solute and the solvent that it's dissolved in. Concentration is a measure of how much solute is dissolved within the solvent.…
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Summaries - Science and technology
EduBook Organización
- 3463 visitas
1. Science and technology in today's world During the 20th century and the beginning of the 21st century, people made great advances which have improved the quality of life for people all over the…
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Video: Nuclear radiations in 3Mile Island, Chernobyl and Fukushima
Educatube Organización
- 7635 visitas
In this 11 minute video (with Spanish subtitles) Helen Caldicott (Nobel Prize) explains the consequences of recent nuclear catastrophes on the human body. We can listen to specific scientific vocabulary…
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Science and technology in today's world
EduBook Organización
- 2713 visitas
Important advances During the 20th century and the beginning of the 21st century, people made great advances in many areas of science and technology. These advances have improved the quality of life for…
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Writing - Understanding the text
EduBook Organización
- 1807 visitas
Complete Brian’s diary. Monday, February 10 Today was cool. Susan, Jim and I went to the old Jim discovered so we could explore. It was really scary. It was all foggy and dark. We climbed over the and…
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