Wednesday, August 26, 2009
Today's science lesson was fun! we were to test for chemical reaction between acids and metals and to test for carbon dioxide when we put acids and carbonates together. and when testing for hydrogen, i put sulfuric acid and zinc together. then i put the rubber stopper to let the hydrogen gas accumilate. and after a while, it was bubbling so much that the sulfuric acid turned chalky. so i took out the rubber stopper and put a lighted wooden splint close to it. and the 'pop' sound was so cute! haha. my hand shook a bit when it popped. then, out of mischieve, i put hydrochloric acid, copper carbonate, potassium carbonate and baking soda together in a test tube, and covered it with a rubber stopper. then i shook it. and guess what? the reaction was so big that the rubber stopped flew out and some of the solution got onto a classmate's face. hahaha.but i think it would work on any acid cos my partner tried it on sulfuric acid. hahahaha. things i stole from science lab today : magnesium, copper, zinc, iron, unknown substance X (a rock or something) and 3 wooden splints.
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