Year 7 Keyword Revision

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Across
  1. 4. Unsorted mixture of rocks, sand, and clay that is directly deposited by a melting glacier.
  2. 5. A type of weathering that occurs when water seeps into cracks in rocks, freezes and expands (by about 9%), over time widening the cracks. Repeated cycles of freezing and thawing eventually shatter the rock.
  3. 8. the unit we measure cloud cover in
  4. 12. Lines on a map that connect points of equal height above sea level in metres.
  5. 15. the unit that we measure air pressure in
  6. 17. A precise method of locating a point on a map using a grid system on an OS Map consisting of 6 figures.
  7. 18. The long-term average weather conditions in an area (typically average over 30 years).
  8. 20. When a mass of warmer air is pushing into mass of colder air.
  9. 21. the force that makes rain fall as droplets
  10. 22. the surname of the man who had a ball bearing factory in Chelmsford
Down
  1. 1. the air mass that hits the UK from the east and is typically cold and dry but can bring snow in winter
  2. 2. Precipitation that occurs when the sun heats the ground, causing moist air to rise, cool, condense, and form clouds, leading to rainfall.
  3. 3. A map projection that preserves true distances from the center of the projection
  4. 6. The major city that the A12 connects Chelmsford to
  5. 7. A weather event that does not fit the pattern of usual weather in that area and typically could cause damage to property or threaten lives.
  6. 9. A small lake formed in a corrie after the glacier melts.
  7. 10. The variations in height and slope of the Earth's surface.
  8. 11. When a mass of colder air is pushing into mass of warmer air.
  9. 13. the air mass that hits the UK from the south west and is usually warm and wet
  10. 14. the shape that represents a cold front on a synotpic chart
  11. 16. An instrument used to measure wind speed.
  12. 19. A process of erosion scrapes against a surface, wearing it away.