Curated Video
Rusting Nails
We investigate the conditions needed for rust to form. Four iron nails are placed under different conditions. One is half submerged in water. Another is completely submerged in boiled water. One is half submerged in salt water. The final...
Curated Video
Dry Ice and Magnesium
We use magnesium and blocks of dry ice to show how a redox reaction occurs. A cavity in a block of dry ice is filled with coils of magnesium ribbon, which are set alight. A second block is then placed on top, but instead of this putting...
Curated Video
Extracting Lead
We discover how to extract lead from lead(II) oxide. We mix lead(II) oxide with charcoal powder and then heat the mixture using a Bunsen burner. It glows bright red as a reaction occurs and after a few minutes we are left with pure lead....
Curated Video
Redox Reactions
For centuries, humans have been extracting metals from molten ores. Today, the basic technique remains the same, but how does extraction work? Chemistry - Reactions - Learning Points. Metals can be extracted from rocks if they are heated...
Rachel's English
Flawless Carryout! (a FREE English Conversation Training Lesson)
In this English conversation training lesson we’ll break down my entire order of carryout! What makes my spoken English sound native and smooth? We’ll break it all down! If you’re working on making your spoken English sound more native...
Rachel's English
Speaking with Confidence? [Unlock the Power of Helping Verbs!]
Helping verbs are key to speaking with confidence in American English. They fill in gaps and make you sound more natural and smooth. Speaking with confidence requires mastery of these tricky verbs but once you’ve got them nailed down...
Healthcare Triage
A Drug to Treat Food Allergy Reactions
If you or someone you love has a life-threatening food allergy, you have to remain constantly vigilant for even the slightest exposure to that food, making even an outing to a restaurant an impossibility for some people. It can be...
Curated Video
Future Innovations in Automotive Technology: From Robot-Assisted Cars to Collision Prevention Systems
This video discusses innovative technologies in vehicles aimed at enhancing safety and convenience for drivers. From cars with rotating cabins and built-in robots to advanced braking systems and lane departure warnings, these features...
Curated Video
What are an Organization's Environmental Responsibilities under CSR?
The Triple Bottom Line that I discussed in an earlier video suggests businesses focus on Profits, People, and Planet. So, what is the Corporate Social Responsibility towards our environment?
Financial Times
Upcycled food is on the up
FT Food Revolution - Upcycling, the practice of using leftover or reject materials to make new products, is well established in vintage fashion and furniture design. But as the FT’s Judith Evans reports, it’s now a trend in food...
Curated Video
GCSE Chemistry - Electrolysis P2 - Electrolysis to Extract Metals From Oxides - Explained #41
This video covers: - How to extract reactive metals from their oxides using electrolysis - Recap of extracting unreactive metals with 'reduction by carbon' - The specific example of extracting aluminium from aluminium oxide - Writing...
Curated Video
GCSE Chemistry - Oxidation and Reduction - Redox Reactions #39 (Higher Tier)
In this video we cover: - Oxidation and reduction in terms of oxygen and electrons - Redox reactions - Displacement reactions - Ionic equations - Half equations This video is suitable for: - Higher tier only - All exam boards - Triple...
Curated Video
GCSE Chemistry - Extraction of Metals & Reduction #38
This video explains the terms 'oxidation' and 'reduction', and then runs through an example how we can use carbon to reduce certain metal oxides - forming pure metals in the process.
Science Buddies
How to Create and Remove Silver Tarnish | Science Project
In this science project, you will explore how silver can be cleaned using electrochemistry and investigate how the silver cleaning reaction changes with different electrolyte salt concentrations.
Curated Video
How The mediterranean Diet Improves Your Mood - What The Science Shows
Did you know that A healthy diet is associated with an approximately 30% reduction in the risk for depression and a 40% improvement in your thinking? There’s been a growing body of research showing an association between diet,...
The Guardian
How to solve the UK's transport problem in the time of coronavirus
Those who can, should go back to work, Boris Johnson has said. But how will people get to work safely? If we take public transport, will there be enough space to physically distance? If we take the car, will the roads cope with all the...
Rachel's English
They Were WRONG!...(They THOUGHT They Knew How to Say this Word)
Speaking English is difficult! You probably have learned to say some of the most common English words wrong. I know, it’s amazing to think about but speaking English well actually involves un-learning some of what you thought you knew!...
Curated Video
High Five Facts - Recycled Metals
This video explores five fun facts about recycled metals.
Curated Video
Scala & Spark-Master Big Data with Scala and Spark - Understanding Reduce by Key
In this session, you will learn about reduce by key. This clip is from the chapter "Project" of the series "Scala & Spark-Master Big Data with Scala and Spark".This section primarily focuses on building a project on Scala Spark.
Curated Video
Transformations: Congruent or Similar Images
In this video, the teacher explains the four types of transformations in math - translation, reflection, rotation, and dilation. They then use a given problem to demonstrate how to identify a transformation that would result in a similar...
Catalyst University
Introduction to Reductions & Sodium Borohydride (Theory & Problems)
Introduction to Reductions & Sodium Borohydride (Theory & Problems)
Catalyst University
NAD: Structure and Reduction of NAD to NADH
NAD: Structure and Reduction of NAD to NADH
Curated Video
Chemical Reactions Involving Metals: Oxidation, Reduction, and Redox Reactions
The video discusses common chemical reactions involving metals such as oxidation and reduction, the formation of positive ions, and redox reactions. It also shows the results of experiments where different metals react with water and...