rasika kulathunga 
Common GCSE Chemistry Mistakes: Acids, Bases & Salts Explained
Common GCSE Exam Mistakes (Acids, Bases and Salts) Mistake 1: Confusing Strong and Concentrated Acids (GCSE Chemistry) One of the most common mistakes in GCSE Chemistry is confusing the terms strong and concentrated when describing acids. Although these words sound similar, they mean completely different things and cannot be used …
Atomic Models History Explained: Dalton, Bohr, and Modern Discoveries
Introduction – Why Do We Need Atomic Models? Have you ever wondered what everything is really made of? The screen you’re reading this on, the air around you, even your own body – it’s all made of atoms. But atoms are far too small to see, even with powerful microscopes. …
Aera