In connection with the topic
"Elements and Atoms" the students of grade VII were given a
demonstration on the reaction of metals with acids. Students performed
reactions of metals such as zinc, and sodium with diluted HCL and could observe
the reaction occurring vigorously evolving colorless gas.
Apart from the activity on reactions,
students were also shown the identification of metals by FLAME TEST, where
salts of copper, sodium, calcium, barium, and potassium are taken and tested. They
observed through the activity that each element shows different flame colors.
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