Search results
Results from the WOW.Com Content Network
Elephant's toothpaste is a foamy substance caused by the quick decomposition of hydrogen peroxide (H 2 O 2) using potassium iodide (KI) or yeast and warm water as a catalyst. [1] How rapidly the reaction proceeds will depend on the concentration of hydrogen peroxide.
The Investigators is a BAFTA-nominated [1] children's science program, presented by children, on Channel 4 in Great Britain.It showed various interesting experiments from how to blow a balloon up with yeast to building bridges.
The effect was described by Louis Pasteur in 1857 in experiments showing that aeration of yeasted broth causes cell growth to increase while the fermentation rate decreases, based on lowered ethanol production. [4] [5]
The natural occurrence of fermentation means it was probably first observed long ago by humans. [3] The earliest uses of the word "fermentation" in relation to winemaking was in reference to the apparent "boiling" within the must that came from the anaerobic reaction of the yeast to the sugars in the grape juice and the release of carbon dioxide.
In a second experiment, Pasteur used the same flasks and sugar-yeast mixture, but left it idle in 'swan-neck' flasks instead of introducing any extraneous matter. Some flasks were kept open to the common air as the control group, and these exhibited mold and microbial growths within a day or two.
Dalgona Coffee. Dalgona coffee started as a TikTok trend, and quickly became a staple in our kitchens. All you need is instant coffee, sugar, and water (and a little elbow grease!) to make this ...
A soda geyser is a physical reaction between a carbonated beverage, usually Diet Coke, and Mentos mints that causes the beverage to be expelled from its container. The candies catalyze the release of gas from the beverage, which creates an eruption that pushes most of the liquid up and out of the bottle.
The blue bottle experiment is a color-changing redox chemical reaction. An aqueous solution containing glucose , sodium hydroxide , methylene blue is prepared in a closed bottle containing some air.