Search results for “optically active substance”

Active Kid’s first step

In the digital age, people’s natural urge for physical activity often falls by the wayside, unfortunately. To counteract this early in childhood, a new daycare center will open in September 2018: ActiveKid’s “physical activity-oriented daycare center” with an area for activities of 5000 square meter

Are You Tricked By These Optical Illusions?

Fooled by these optical illusions? Don't feel bad, it's normal. Click here to see more videos: https://alugha.com/LifeNoggin Follow Life Noggin! Facebook: https://facebook.com/LifeNoggin/ Instagram: https://instagram.com/lifenoggin/ Twitter: https://twitter.com/lifenoggin Official Website: https:

Substance Abuse and Its Consequences

Learn about what substance abuse is, and the consequences that result from it. Sources: https://www.drugabuse.gov/related-topics/trends-statistics https://www.summitbehavioralhealth.com/resources/articles/consequences-of-addiction/ This video was created by one of our volunteer authors to support

Active learning

"Active learning" means getting involved, collaborating with others, and implementing concepts in the real world. It is intellectual hard work. But it allows you to remember the content better, understand it better and transfer it to other situations. Why does it work so well? We take a look at th

08 Classification of Substances

In chemistry, substances are divided into different groups. This screencast gives a short and theoretical overview of this classification. An initial relationship between elements and compounds is essential. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been don

09 The amount of substance

In this screencast, the amount of substance is introduced as a basic chemical quantity. Other chemical quantities will refer to it. This screencast is the beginning of a series on chemical calculations (stoichiometry). They do not contain exercises and excessive explanations! Original: "Wolfgang D

08 Decomposition of a pure substance

Pure substances can be analysed (broken down) by chemical reactions. In the process, elements are created. The important experiment of Hoffman's decomposition apparatus is presented and the proof for hydrogen and oxygen gas is shown. The results of the experiment are part of the attendance phase at

The Active Learning Method

"Active learning" means you participate, collaborate with others, and apply concepts to the real world. It requires hard mental effort but leads to better retention and an understanding of the material that can be transferred to other situations. To explain how to apply Active Learning in classrooms

How to find radioactive substances in humans

Radioactive substances are found everywhere in our environment. They can enter the human body through inhalation or food. In the video, Dr. Udo Gerstmann explains how to measure radioactivity in the body with a whole-body counter and when it is used. Original: "Federal Office for Radiation Protecti

How to find radioactive substances in the air

There are various methods for measuring radioactivity in the air. With the help of trace analysis, even very low concentrations of radioactivity in the air can be detected. In the video, Jacqueline Bieringer explains how to detect radioactive substances in the air. Original: "Federal Office for Rad