 |
Liquid Nitrogen Solid Mercury Posted by: petersplim
Video duration: 430 seconds Experiment with liquid nitrogen and helium gas and merucry Related: balloon, hard, liquid, mercury, nitrogen, pl, solid, stiff |
 |
Liquid Nitrogen and the spinning ping pong ball Posted by: petersplim
Video duration: 89 seconds 2 holes are punctured at a slanting/glacing angle into a ping pong ball. It is then immersed in liquid nitrogen. The air inside it cools. This lowers the air pressure inside the ping pong ball. Liquid nitrogen then partly fills the ping pong ball. The ping pong ball will start to spin as cold liquid nitrogen boils shooting out cold nitrogen gas from these 2 holes. Related: ball, liquid, nitrogen, peterlim, ping, pong, spinning |
 |
Liquid nitrogen shrinking a helium filled balloon Posted by: petersplim
Video duration: 58 seconds A helium-filled balloon is less dense than air and it can float upwards. When the balloon is shrunk by pouring liquid nitrogen over it, it becomes denser than air and falls to the ground. Upon warming and expanding, it will fly up again.This video is produced in Singapore. More videos on www.plenrich.com Related: balloon, helium, liquid, nitrogen |
 |
Liquid nitrogen shrinks rubber balloon Posted by: petersplim
Video duration: 257 seconds Very cold liquid nitrogen slows down the air molecules inside a balloon and its volume shrinks. The flexible nature of the macromolecules of rubber also changes to be stiff. Related: balloon, coronationplaza, cp, liquid, nitrogen, petersplim, pl |
 |
Liquid nitrogen LN2 Eating biscuit cooled in LN2 Posted by: petersplim
Video duration: 196 seconds When liquid nitrogen cooled a piece of biscuit to about -196 degree Celsius, and when we eat (munch) it with our mouth closed, streams of condensed water vapour will come out from the nostrils Related: biscuit, liquid, nitrogen |
 |
Pressure cups demonstrating atmospheric pressure Posted by: petersplim
Video duration: 330 seconds These pressure cups can support up to 60 kg force. They are usually used in carrying huge piece of glass. It demonstrates the great pressure exerted by our atmospheric pressure at sea level Related: atmospheric, cups, girls, pl, plenrich, plsingapore, pressure, singapore, sms, suction |
 |
Various oxidation states (o.s.) of Chromium Posted by: petersplim
Video duration: 380 seconds Chromium is a transition metal..it has several o.s. values which give various colours Related: chromium, colours, metal, os, transition |
 |
Physics Balloons expanding in a vacuum 2007 Sec 1 @ JE Posted by: petersplim
Video duration: 201 seconds Related: 1, 2007, @, a, balloons, expanding, in, je, physics, sec, vacuum |
 |
Things swelling in Vacuum Posted by: petersplim
Video duration: 315 seconds When something like balloon or a spoonful of whipped cream, containing air is put inside a vacuum: it will swell. Related: cream, jurongeast, petersplim, pleducation, plenrich, plenrichment, vacuum, whipped |
 |
Vacuum : Mashmallows expanding in a vacuum Posted by: petersplim
Video duration: 137 seconds Anything that has air will expand in a vacuum. When air is evacuated(exhausted out of)from a chamber, 2 mashmallows are seen to expand, as they contain some air inside them. More videos can be seen on PL Education Centre(Singapore) website: http://www.plenrich. com Related: bloat, expanding, mashmallows, pl, suck, vacuum |
 |
Colourful Universal Indicator UI Posted by: petersplim
Video duration: 181 seconds By diluting aqueous ammonia (a weak alkali) or aqueous ethanoic acid (a weak acid), the 6 colours of UI can be obtained. Visit www.PLsingapore.com Related: acid, bases, chemistry, pl, plenrich, plsingapore, salts, ui |
![Liquid nitrogen poured onto students\](http://img.youtube.com/vi/zJwOTFm6DWg/2.jpg "Liquid nitrogen poured onto students\") |
Liquid nitrogen poured onto students' hand Posted by: petersplim
Video duration: 209 seconds Very cold liquid nitrogen vapourises immediately upon contact with warm object s like our skin. The vapour forms an insulating layer preventing more heat being lost from our warm palms. Caution: do not did your hand into liquid nitrogen for more than 1 second. Do visit our education website at www.PLsingapore.com Related: coronation, cp, hand, liquid, nitrogen, petersplim, pl |
 |
Liquid nitrogen shrinks balloon of a 4 year old child Posted by: petersplim
Video duration: 121 seconds Liquid nitrogen shrinks the bunny balloon of a 4 year old child. She is not too young to learn about Liquid nitrogen. Her name is Isabel from Singapore. Related: balloon, bunny, isabel, liquid, nitrogen, petersplim |
 |
Liquid nitrogen and the big spinning blue plastic ball Posted by: petersplim
Video duration: 73 seconds This is a sequence to the video that was put in YOUtube a year ago about Liquid nitrogen and the spinning ping pong ball. Related: ball, liquid, nitrogen, petersplim, plastic, pleducation, plenrich, plsingapore, spinning |
 |
Helium filled balloon sinks in Helium environment Posted by: petersplim
Video duration: 115 seconds Just like a balloon filled with air sinks in air, a balloon filled with helium will not rise, but sink in a helium surrounding.Kindly look into http://www.plsingapo re.com for more science videos and info Related: balloon, density, helium, pl |