Educational Quiz

12345678910111213141516171819202122
Across
  1. 3. First city targeted with an atomic bomb
  2. 8. Metal with the chemical symbol Fe
  3. 9. Cold biome with permafrost and limited vegetation
  4. 10. Mathematics dealing with symbols and equations
  5. 12. Biological catalyst that speeds up reactions
  6. 13. 2020 event marking the UK's departure from the EU
  7. 14. British passenger liner that sank in 1912
  8. 17. Planet named after a Roman goddess, often called Earth’s twin
  9. 18. Electrically neutral particle in an atom’s nucleus
  10. 20. Warm-blooded animal with hair and usually live birth
  11. 22. Tense political and ideological conflict between the US and USSR
Down
  1. 1. City divided during the Cold War
  2. 2. space telescope launched in 1990
  3. 4. Russian chemist who created the periodic table
  4. 5. Macromolecule made of amino acids
  5. 6. Symbolic location of major financial institutions and 1929 crash
  6. 7. Tendency of an object to resist a change in motion
  7. 11. Type of plate responsible for earthquakes and mountains
  8. 15. Highest mountain in Africa
  9. 16. Number puzzle involving a 9x9 grid
  10. 18. Organelle that houses DNA in eukaryotic cells
  11. 19. Single-celled organisms, some beneficial, some harmful
  12. 21. Famous Austrian composer of “The Magic Flute”