How to spend an entertaining lesson in chemistry in the kitchen and make it a safe and fun for your child?Let's try to hold a real chemical experiments - volcano in regular table plate.For this experiment you need the following materials and reagents:
- a piece of clay (from it we will do very volcano);
- plate;
- acetic acid;
- baking soda;
- dishwashing liquid;
- dye.
The above components can be easily found in every home and in the economic department of a nearby shop.They are quite safe, but like any experiments in chemistry, this also requires compliance with safety regulations.
Job Description:
- Of clay and make the base of the volcano cone with a hole.We connect them carefully slapped edge.We get plasticine mock volcano slopes.Inner size of our design should have a circle with a diameter of about 100 - 200 mm.Before installing the layout in a bowl or tray to check the tightness of our Volcano: type in the water and look at it, if he misses it.If everything is in order - establish the layout of the volcano at the plate.
- now move on to the next part - preparation of lava.We fall asleep in our mock volcano plasticine one tablespoon of baking soda, dishwashing liquid to the same extent, and color which will color the future eruption of lava into the corresponding real color.To achieve the maximum similarity, you can use food coloring, children's paint to paint and even ordinary beet juice.This chemical has to recreate the experience of a child in the eyes of the volcanic eruption in nature.
- To start the eruption is necessary to fill the crater-fourth of a cup of vinegar.During the chemical reaction, the compound of soda and acetic acid leads to the formation of salts of carbonic acid, which relates to compounds of unstable and immediately decomposes to water and carbon dioxide.It is this foam process and give our view of the eruption of the volcano with the lava flows on the slopes.Chemical experience complete.
demonstration of an active volcano in the school
addition to the form described above demonstrate the safe eruption there are many ways to get a volcano on the table.But these experiments is best done in a specially prepared areas - school chemistry laboratories.The most famous all at school Volcano Boettger.For his conduct is necessary ammonium dichromate, which is poured a hill, at the top of her doing the deepening.The crater is placed a piece of cotton wool dipped in alcohol, which is set on fire.During the reaction a nitrogen, water and chromium oxide.Reaction takes place is very similar to the eruption of an active volcano.
to memorize, as well as for the development of scholarship in children is well connected by a chemical experiment with some best-known example of the eruption in the history of human civilization, for example, with the explosion of Mount Vesuvius in Italy, especially because of its wonderful and usefulfor the outlook can be illustrated by reproductions of great paintings of Karl Briullov "The Last Days of Pompeii" (1827-1833 biennium).
is interesting for the children will also be the story of a rather rare and rewarding profession volcanologist.These professionals constantly monitor already extinct and active volcanoes today, make assumptions about the possible time and the strength of their future eruptions.
