Chemical kwarewa - Dutsen Vesuvius a kan tebur

Yadda za a ciyar da wata nishadi darasi a cikin sunadarai a kitchen, kuma yin shi aminci da fun for your yaro? Mu yi kokarin rike da wani real sinadaran kwarewa - aman wuta a wani yau da kullum tebur farantin. Domin wannan kwarewa, kana bukatar wadannan kayan da sunadarai:

- wani yanki daga lãka (daga shi za mu yi da aman wuta kanta).

- wani farantin.

- acetic acid.

- yin burodi soda.

- dishwashing ruwa.

- fenti.

A bisa gyara za a iya saukin samu a kowane gida ko a cikin tattalin arziki sashen na wani nan kusa shop. Su ne quite hadari, amma kamar wani gwaje-gwajen a cikin sunadarai, wannan zai ma bukatar yarda da aminci dokoki.

Bayanin aiki:

1. Plasticine da kuma sa tushe na aman wuta mazugi tare da wani rami. Gama su a hankali mari baki. Mun samu plasticine aman wuta layout zuwa gangaren. Inner size of mu zane kamata a yi da'irar da diamita na game da 100 - 200 mm. Kafin installing da layout a wani farantin ko tire duba mu aman wuta a kan zuba: muka tattara shi da ruwa da kuma ganin idan ta wuce shi. Idan duk abin da yake duk dama - saita layout na aman wuta a farantin.
2. Mu yanzu matsa zuwa na gaba part - dafa lawa. Mun fada barci a cikin izgili gare aman wuta daga lãka daya tablespoon na yin burodi soda, dishwashing ruwa a cikin girma da kuma wani fenti cewa zai bata nan gaba shigowa na lawa a cikin m real launi. Don cimma matsakaicin kama, za ka iya amfani da abinci canza launi, yara Paint zuwa cin har ma talakawa beetroot ruwan 'ya'yan itace. Wannan sunadarai ne ka sake da kwarewa da yaro a gaban da volcanic shigowa a yanayi.
3. Don fara da shigowa wajibi ne a cika bakin dutse-hudu daga wani kofin vinegar. A lokacin da sinadaran dauki wani fili na soda da acetic acid take kaiwa ga samuwar na salts na carbonic acid, wadda ke da alaka da mahadi m, kuma nan da nan decomposes zuwa ruwa da carbon dioxide. Yana da wannan tsari na kumfa, kuma ba mu gani na shigowa daga cikin aman wuta tare da lawa gudana a kan gangara. Chemical kwarewa complete.

Zanga-zanga na wani aiki aman wuta a cikin makaranta

Bugu da kari zuwa sama-aka bayyana irin zanga-zanga da hadari shigowa, har yanzu akwai da yawa hanyoyi don samun aman wuta a kan tebur. Amma wadannan gwaje-gwajen da aka fi yi a shirya musamman gabatarwa - makaranta sunadarai dakunan gwaje-gwaje. A mafi yawan sanannun to duk a makaranta aman wuta Boettger. Ga halinsa ake bukata ammonium dichromate, wanda aka zuba wani tudu, a saman ta sako. A bakin dutse da aka sanya a yanki na auduga tsomasu a tsanake cikin barasa, wanda aka kunna. A lokacin da dauki wani nitrogen, ruwa da kuma chromium oxide. A dauki fitowa sosai kama da shigowa da wani aiki mai aman wuta.

Don haddace, kazalika ga ci gaban da malanta a yara ne da alaka da wani sinadaran gwaji tare da wasu fi shahara misali na shigowa a tarihin wayewar dan adam ne, misali, tare da fashewar Dutsen Vesuvius a Italiya, musamman saboda ta ban mamaki da kuma domin amfanin sararin sama za a iya kwatanta ta reproductions na girma zanen Karla Bryullova "The Last kwanaki na Pompeii" (1827-1833 biennium).

Ba tare da amfani ga yara kuma za ta zama da labarin wani wajen rare da alheri sana'a volcanologist. Wadannan kwararru kullum saka idanu riga dadaddun da kuma aiki volcanoes a yau, yin zato game da yiwu lokaci da kuma karfi na gaba eruptions.