In today's rapidly evolving world, it is crucial/vital/essential to empower/cultivate/nurture future generations with the skills and knowledge necessary to thrive/succeed/excel. STEM education plays a pivotal/fundamental/key role in achieving this goal by providing students with a strong foundation in STEM disciplines. Through engaging activities/p

Before modern classification systems, scientists faced challenges in the known elements. One early attempt was made by Johann Wolfgang Döbereiner, a German chemist who recognized a striking pattern among certain groups of compounds. He proposed that three elements with similar properties could be grouped together as these sets, forming the basis f