Science experiments for children – Dancing raising

What you need:

water,
baking soda,
white vinegar,
five or six raisins,
a glass jar with high sides.

This experiment can be very interesting to be proposed during the narration of the Montessori first cosmic fable, illustrating the dance of the elements.

Science experiments for children – Dancing raising

How do

Pour into the jar a cup of water, add a tablespoon of baking soda and mix well.

Add the raisins.

Finally pour slowly, half tablespoon of white vinegar.

The raisins should begin to dance in the jar.

If not, add more vinegar.

photo credit: http://www.parentsconnect.com

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Science experiments for children – Dancing raising

What happens?

Vinegar is an acid and baking soda is a base.

Together they develop a chemical reaction that produces carbon dioxide CO2.

Carbon dioxide adhering to the sides of raisins, making her climb.

Arrived at the surface, some of the gas bubbles burst, then the raisins precipitates again towards the bottom of the jar.

 

photo credit: http://www.thenakedscientists.com

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Science experiments for children – Dancing raising

Video

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Science experiments for children – Dancing raising

Other links

http://www.parentsconnect.com/ http://www.thenakedscientists.com/

http://www.thenakedscientists.com/HTML/experiments/exp/dancing-raisins/

http://scifun.chem.wisc.edu/homeexpts/dancingraisins.htm

http://kidsactivities.about.com/od/ScienceExperiments/a/The-Dancing-Raisin-Science-Experiment.htm


Di Maria Marino

Sono Maria Marino. Mi occupo di pedagogia, didattica, arte e manualità. Lapappadolce è il sito che scrivo come insegnante e mamma, per contribuire nel mio piccolo a rendere più accessibili a tutti i bambini, a scuola o a casa, la didattica Montessori, la pedagogia Waldorf, e tutte le pratiche educative che ho imparato con loro e in cui credo.

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