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EXPERIMENTS
simple and homemade
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EXPERIMENTS FOR FAIR OF SCIENCES
EXPERIMENTS
FOR FAIR OF SCIENCES
COMPLETE KITS TO ARM
It obtains one
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EXPERIMENTS OF SCIENCES
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THAT IT IS NEEDED
* Plasticine
* 1 Spoonful of Soda water Bicarbonate
* Colouring for cakes (red)
* liquid Soap
* 1/4 vinegar cup
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SIMPLE CHEMICAL VOLCANO

This experiment becomes on a table in which it has been placed pieces of periodic paper previously, because a disaster can be done!

SINCE ONE BECOMES

It models your volcano with plasticine of brown and green color. Red color in the part of above of the volcano simulating the lava can be used that flows. A hole is made in center of the volcano with the help of a rod of wood or a test tube.

THAT ONE BECOMES

In order to make that the volcano does eruption a spoonful is placed in the interior of soda water bicarbonate, some drops of colouring of food (for cakes of red color), some drops of liquid soap enm and finally a spoonful of vinegar. To the few moments you will notice that it begins to leave the “lava? that takes place by the reaction of bicarbonate with the vinegar.

Also a volcano with paper mache or wet newspaper pieces can be done with white glue. It is painted and it is placed in a tray, as it is possible to be seen in the photo.

AS IT WORKS

The sodium bicarbonate acts as a base in front of the vinegar (acid acetic) and the neutralization takes place (total or partial). Dioxide is come off carbon (the bubbling that leaves with foam and everything). Also one obtains water and acetate of sodium.