demonstration

Chemistry experiment 22 – Elephant's toothpaste (scaled up)

Adding a solution of potassium iodide to a concentrated solution of hydrogen peroxide causes the hydrogen peroxide to break down into water and oxygen gas. Oxygen gas and soap produce a large amount of foam. Hazards: – Concentrated hydrogen peroxide is very corrosive. source

3 Egg-cellently Weird Science Experiments

This week Reactions is walking you through the chemistry behind protein denaturing, making an egg bounce, and creating your own green eggs (minus the ham–that’s all on you). 0:24 – “Cook” an Egg without Heat 1:53 – Make an Egg Bounce 2:48 – Green Eggs and Ham Today we’re coming at you with three kitchen […]

Investigating the Periodic Table with Experiments – with Peter Wothers

We celebrate 150 years of the Periodic Table and Mendeleev’s genius by braving the elements from Argon to Zinc in this demonstration filled show. Subscribe for regular science videos: http://bit.ly/RiSubscRibe You can pre-order Peter’s book “Antimony, Gold, and Jupiter’s Wolf: How the elements were named” now: https://geni.us/AaaEa Dr Peter Wothers is a Teaching Fellow in […]

Burning magnesium in dry ice

Declan Fleming shows you how to prepare and demonstrate burning magnesium in solid carbon dioxide (dry ice). This dramatic and beautiful demonstration shows that oxygen isn’t always a prerequisite for fire and reveals carbon’s place in the reactivity series. Read the article that accompanies this video at http://bit.ly/EiC_ec0511 This is part of the Education in […]

AK-47 Underwater at 27,450 frames per second (Part 2) – Smarter Every Day 97

In which Destin uses an AK-47 to teach you the Physics of cavitation. Tweet this: http://bit.ly/AK47inPool Post to Facebook: http://bit.ly/AK47Pool Tweets by smartereveryday See TheSlowMoGuys video here: http://youtu.be/OubvTOHWTms I’ve been subscribed to them for ages. I recommend you do the same! http://www.youtube.com/theslowmoguys Song “Baiji” by A Shell in the Pit – Download here: http://ashellinthepit.bandcamp.com/track/baiji Slow […]

Reaction of copper with nitric acid

Declan Fleming shows how copper can in fact react with some acids by demonstrating the reaction of copper and nitric acid, producing a visually stunning reaction. Read the article that accompanies this video in the November 2011 issue of Education in Chemistry at http://www.rsc.org/EiC0611ec This is part of the Education in Chemistry Exhibition Chemistry series: […]

Making Nylon

A chemical demonstration of the synthesis of nylon in Carleton University’s CHEM 1000 course. Carleton University, Ottawa, Canada. source

Chilling effects – a spontaneous endothermic demonstration

It’s easy to find plenty of dramatic demonstrations of exothermic reactions, but most endothermic reactions don’t leave much of an impression. However, a dramatic impression might be needed to shake the misconception some students hold that endothermic reactions cannot occur spontaneously. This is where the solid–solid reactions of barium hydroxide with ammonium salts are useful. […]

How to Etch with White Vinegar (Kitchen Lithography Variation)

Last week I happened upon videos about kitchen lithography. It got me very excited! I couldn’t wait to try the process out for myself. But, what occurred to me was that it was the acidic properties of cola that was responsible for the etch. This led me to believe that white vinegar might be a […]

Energy saltwater

This project is very easy to do! Needed: An aluminum can. A sheet of copper foil of 0.3-0.4mm. Two insulating rubber spacers. An engine of a cd rom 2-3 volts, to be recovered from the inside of a PC. 1 liter of water with 3-4 tablespoons of salt for foods.The duration of rotation of the […]