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Elephant's toothpaste. Elephant's toothpaste is a foamy substance caused by the rapid decomposition of hydrogen peroxide (H2O2) 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. [2][3][4]
Tyrkisk peber (Danish for "Turkish pepper", often referred to as Turkinpippuri in Finnish, Türkisch Pfeffer in German, Tyrkisk pepper in Norwegian and Turkisk peppar in Swedish) is a salty liquorice candy flavoured with salmiac (ammonium chloride), produced by the Finnish company Fazer and popular in Northern Europe. Tyrkisk peber comes in ...
It is an igneous rock. [6] Obsidian is produced from felsic lava, rich in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. It is commonly found within the margins of rhyolitic lava flows known as obsidian flows. These flows have a high content of silica, granting them a high viscosity.
Flaming volcano is a large tropical group cocktail typically made with rum, brandy, pineapple juice, orange juice, and orgeat syrup. [1] Many variations exist, and the cocktail in the 21st century is more about the presentation than an adherence to a set list of ingredients. It is usually a multi-user drink, served to a group in a special ...
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.
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. The process that forms volcanoes is called volcanism. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and because most of Earth ...
Volcanic rock. Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks.
Pumice. Specimen of highly porous pumice from Teide volcano on Tenerife, Canary Islands. Density of specimen approximately 0.25 g/cm 3; scale in centimeters. Kutkhiny Baty, a pumice rock formation outcrop located 4 km from the source of the Ozernaya River (Lake Kurile), near the southern tip of the Kamchatka Peninsula, Russia.