12 vistas · 04/01/24
3 vistas · 04/01/24
NEW Periodic table song - All 118 chemical elements - Hydrogen Oxygen Chemistry
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19 vistas·
02/05/24
#nguyenanngan
Learn the periodic table easily at all ages by either listening or looking at these pictures to learn the usages of each element.
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12 vistas · 04/01/24
3 vistas · 04/01/24
