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Showing posts from March, 2026

The Reactivity Series

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 Cs Fr K Rb Ba Ra Sr Ca Na Li La Mg Al Ti Mn Zn Cr Fe Co Ni Sn Pb H Sb Bi Cu W Hg Ag Pd Pt Au

British Curriculum - Exam Past Papers with Marking Schemes - Handy Website

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 Dear all, Here is a very handy website with IGCSE and IAL past papers and marking schemes - easy to find and download for free. https://igcse.hirusha.xyz/

Museum of Islamic Art, Qatar - MIA - Beautiful Emeralds

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 Emeralds are minerals of aluminum and beryllium  Be3Al2(SiO3)6 MIA, Museum of Islamic Art in Doha, Qatar has a beautiful display with emeralds. Emeralds have very distinct unusual bright blue-green color.

Flame Tests - Alkali Metals

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 Lesson Materials, including an explanation in German.  Turns out, when you do not understand the language, you can still learn from the visuals, and it this way of learning through guessing is more fun. Interesting facts The most beautiful and mesmerizing to watch are crimson-red Li flame, and blue-green Cu. Rubidium is called so because of the bright deep-red spectral lines.  Gemstone ruby has Al2O3 and https://drive.google.com/drive/folders/1PGPPMPu_9MahAiR86hB4NpgMDeo3_GNJ?usp=sharing