Science Vocabulary Review

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Across
  1. 1. the boundary between two different air masses
  2. 4. a short term climate change that occurs every two to ten years
  3. 5. a large group of cells that all have the same purpose or function
  4. 6. forms when a cold air mass pushes a warm air mass; thunderheads can form followed by cool, fair weather
  5. 9. system (of nerves) in your body that sends messages for controlling movement and feeling between the brain and the other parts of the body
  6. 11. thick, fluffy clouds with flat bases, formed by vertically rising air currents, usually mean fair weather
  7. 15. global winds in the United States that constantly blow from west to east
  8. 19. the basic unit of life; the smallest living part of the body
  9. 20. system that breaks down food into a form that can be used by the body
  10. 22. the falling to earth of any form of water (rain, snow, sleet, hail)
  11. 24. a flow of air or water in a certain direction
  12. 25. system that helps support and move the body and protect some of the organs
  13. 27. clouds that form in flat layers and often cover much of the sky- usually mean rain or snow
  14. 29. composed of many cells
  15. 33. on of the halves of the earth as divided by the equator
  16. 35. a warm ocean current that flows from the Gulf of Mexico northward through the Atlantic Ocean
  17. 36. system that transports materials such as food, and oxygen to the cells throughout the body
Down
  1. 2. tissues that work together to perform a specific function
  2. 3. rain, snow melt, or other water that flows in surface streams, rivers, or other bodies of water
  3. 4. an imaginary line around the Earth forming the great circle that is equal distance from the north and south pole
  4. 7. a group of structures that work together to perform a specific function or task
  5. 8. a high-speed high-altitude airstream blowing from west to east near the top of the troposphere; had important effects of the formation of weather fronts
  6. 10. a type of cumulus cloud that is tall and gray, and associated with thunderstorms
  7. 11. wispy, feathery clouds made of ice crystals that form at high levels- usually mean fair weather or a change in weather
  8. 12. a mass of rising warm air that usually brings wet, stormy weather
  9. 13. the average weather conditions in an area over a long period of time
  10. 14. a mass of sinking cold air that usually bring fair weather
  11. 16. system used to bring in oxygen for the body to use and to take away carbon dioxide
  12. 17. a body of air that has about the same temperature and moister throughout
  13. 18. the condition of Earth’s atmosphere at a particular time and place
  14. 21. system that controls all movement in the body
  15. 23. the process by which water changes from liquid form to an atmospheric gas
  16. 26. an imaginary line around the Earth parallel to the equator
  17. 28. a front where warm air moves over cold air and brings drizzly rain and then are followed by war and clear weather
  18. 30. the process by which plants release water vapor into the atmosphere
  19. 31. the process by which water molecules of water vapor in the air become liquid water
  20. 32. composed of one cell
  21. 34. the amount of water vapor in the air