hoi

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Across
  1. 2. Why stirring peanutbutter is a bad idea and stirring water works better
  2. 5. despite its name, this cold material does not contain any water nor hydrogen
  3. 7. This fluid is not only found on earth, but also (on average) 77 Gm into space
  4. 9. The favourite number of this superhero is 26
  5. 10. if you also have an H20
  6. 11. They used to think there were only 5
  7. 13. the London Eye made out of iron
  8. 15. The steely brothers of Helium and Xenon
  9. 17. BariumdiNatrium
  10. 19. a little mammal which can be suprisingly ugly
  11. 20. Water, ammonia and the Arctic have this in common
Down
  1. 1. The addition of more solute does not make this fluid an improved version of the quinine beverage
  2. 3. Answer
  3. 4. the diet version of E.E.
  4. 6. Father of the elements
  5. 8. The favourite element of our study association
  6. 12. a fish made of two sodium atoms
  7. 14. element with the lowest melting temperature
  8. 16. The city full of 'Japie' stickers
  9. 18. when you ask for his number and he writes down 23 digits