Year 10 ESS SPELLING

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Across
  1. 2. A collapsing cloud of gas that will eventually become a star
  2. 4. An astronomical unit of length equal to 3.26 light-years
  3. 6. Theory that the universe began with an enormous explosion of energy
  4. 12. Ecosystems that are diverse and provide for needs of the organisms that live there
  5. 16. A technique used to measure the distance to other stars
  6. 18. The process by which green plants use sunlight to synthesise glucose
  7. 21. All living things on Earth
  8. 22. A collapsed star so massive that not even light can escape its gravitational field
  9. 25. All the water on the Earth’s surface
  10. 27. The process in living cells where a chemical energy is released in a series of metabolic steps
  11. 28. The process by which carbon is recycled through the soil, water, living things and atmosphere
  12. 29. The circular patterns shown by ocean currents in the major ocean basins
  13. 30. Continuous movements of ocean water
Down
  1. 1. Fuels that contain the Carbon of plants & animals that died & preserved millions of years ago
  2. 3. Areas where temperature in layers of soil beneath the surface never rises above freezing point
  3. 5. The expansion or compression of waves due to the motion of the object making the waves
  4. 7. Process particles of dust & rock slowly come together due to gravity to form a larger object
  5. 8. cycle, The process by which Nitrogen cycles between the living and non-living environments
  6. 9. Debris a glacier was carrying, which is left behind as the glacier retreats
  7. 10. The state of the atmosphere in terms of temperature, wind, cloud cover and rain at any given time
  8. 11. A cloud of gas found in the empty space between stars; birthplace of new stars
  9. 13. spectrum, Different types of electromagnetic radiation
  10. 14. Describes a cool period of time within an ice age and glaciations
  11. 15. The study of the history and structure of the entire universe
  12. 17. A device that splits light into a spectrum to show its component wavelengths
  13. 19. Earth’s crust the mountains, continents and ocean floor are all part of the lithosphere
  14. 20. Gases that trap heat close to the Earth’s surface
  15. 23. A giant explosion that occurs when a star many times larger than our Sun runs out of nuclear fuel
  16. 24. change, Change to the averages of aspects of climate that persist for decades or longer
  17. 26. A large group of stars attracted to one another by gravity