1. geometry   Geometrie   Trigonometrie   Geschichte   Botanik   Hint Half-n-half Clue   2. astronomy   Astronomie   Zoologie   Geometrie   Trigonometrie   Half-n-half Clue   3. physics   Physik   Chemie   Algebra   Zoologie   Half-n-half Clue   4. geography   Infinitesmalrechnung   Astronomie   Erdkunde   Geschichte   Half-n-half Clue   5. biology   Trigonometrie   Biologie   Erdkunde   Psychologie   Half-n-half Clue   6. history   Geschichte   Philosophie   Zoologie   Physik   Half-n-half Clue   7. zoology   Geschichte   Zoologie   Botanik   Psychologie   Half-n-half Clue