Science An Nature

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Across
  1. 3. Light can be split into this with a prism
  2. 6. The largest desert in the world
  3. 8. Large marsupial
  4. 11. The science of living things
  5. 12. The path of a planet or other celestial object
  6. 13. High points of land created by tectonic movement
  7. 15. Bengal, Malayan and Siberian are all types of which big animal?
  8. 16. Charles ________ Famous for defining the Theory of Evolution
  9. 17. A planet with rings
Down
  1. 1. Marie _______, pioneer of radiation research
  2. 2. Large wave created by underwater earthquakes
  3. 4. An instrument to measure temperature
  4. 5. The infant form of frogs and toads
  5. 7. Globally , this Farm animal outnumbers people 20 to 1
  6. 9. Sea Bird with a large wingspan
  7. 10. The largest internal organ in the human body
  8. 14. This word can go before 'Year','Saber' and 'Switch'
  9. 16. The most popular pet in Britain
  10. 18. The name of both a river and a rainforest