In connection with the topic
"Elements and Atoms" the students of class-7 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 doing these reactions
students are given a demonstration of
identification of metals by FLAME TEST, where salts of copper, sodium, calcium,
barium, and potassium are taken and tested
and could observe that each element showed different flame colors.
This demonstration evoked the enthusiasm
in the students and they actively
participated in the activity.
No comments:
Post a Comment