Showing posts with label Science.. Show all posts
Showing posts with label Science.. Show all posts
Tuesday, 15 April 2014
How to make a Fire Extinguisher.
Today we made our own Fire Extinguisher. In a bottle we mixed vinegar and baking soda. Our bottle had a straw attached, and we lit 3 candles. The vinegar and baking soda reacted together and created a gas called carbon dioxide. The gas blew out the candles. We could hear the gas escaping from the bottle.
Tuesday, 11 March 2014
Catastrophic currants..."Dancing Raisins".
Today we mixed vinegar, baking soda and raisins together. The vinegar and baking soda made a gas and formed bubbles. The bubbles attached to the raisins and they floated to the top, 'Popped', and sunk to the bottom.
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