Friday, 20 May 2016

Sensational Science...

Today Rocco and Sienna brought in their science experiments.

Sienna mixed 3 teaspoons of salt into a smaller jar of white vinegar. She stirred it until it had almost dissolved.  She had some dirty 10cent coins.  She dipped the coins into the vinegar mixture.  To our surprise the colour of the coin changed.  Sienna  explained that there had been a chemical reaction between the vinegar and the salt, and this had stripped the muck off the coin.  Very cool...

Rocco wowed us with a balloon experiment.  He put a balloon onto the end of a funnel and added 3 tablespoons of baking soda.  The baking soda fell into the balloon.  Carefully took the balloon off the funnel and put it over the top of the vinegar jar.  Rocco lifted the balloon slightly and the baking soda fell into the vinegar bottle.  The balloon blew up before our eyes!  By itself!  

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