Year 6 Investigate Chemical Reactions!
Year 6 have been finding out all about chemical reactions. They discovered that two or more substances are needed for a chemical reaction to occur and that new substances are always made. Unlike physical reactions where no new substances are made, many chemical reactions are not easily reversible.
In this experiment they found that reacting ethanoic acid (vinegar to most of us) with sodium hydrogen carbonate (bicarbonate soda) produced a gas which was collected in a balloon. The gas was then tested with limewater to prove the new substance, carbon dioxide, was formed. They then spent some time discussing the full chemical reaction and the new products made.
Great fun, learning and curiosity was had by all!