Kayla's science crossword

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Across
  1. 1. The Biosphere is the collective interaction of all the biomes on the Earth.
  2. 2. all the organisms in a particular area at a given time
  3. 3. the total dry weight of the organisms in a level
  4. 5. a relationship where two types of organisms compete for the same resource
  5. 8. a plant eater
  6. 9. Web a network of interrelated food chains in a given areas
  7. 10. and Tidal Power can be used to generate electricity from the rise and fall of the waves and the tides
  8. 11. energy is energy harnessed in areas of the earth that are near volcanoes or hot springs
  9. 13. the relationship in which one organism that hunts and eats another
  10. 15. shows the reusing of certain elements and compounds (e.g. water, carbon, oxygen, nitrogen, phosphorus) in different forms in ecosystems.
  11. 16. change allows of sunlight to reach the earths surface
  12. 18. Energy from windmills can be used to generate electricity by turning turbines in the same way
Down
  1. 1. Magnification is the accumulation in body tissues of certain chemicals
  2. 4. Factors- living factors e.g. amount of food, predators, parasites, competitors
  3. 5. - a form of symbiosis in which one organism helps the other organism, but there is no benefit or harm done in return
  4. 6. Explosion is the rapid increase in population in developing countries causing famine
  5. 7. Species are species of plants or animals that have migrated or been brought to Australia
  6. 12. – the study of the interrelationships of living organisms and their environment.
  7. 13. people that make the things (eg; fruits )
  8. 14. Pollution release into the atmosphere of excessive amounts of harmful gases
  9. 17. Rain When gases such as sulphur dioxide and nitrogen oxides react with water