Evidence of Climate Change

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Across
  1. 2. ___________ cores come from the ocean floor
  2. 4. ________ cores come from places like Antarctica
  3. 6. Scientists who use trees, ice cores, and lake and ocean sediment to study Earth's climate are called ______________.
  4. 9. this word means to "build-up" and refers to the ice onto a growing glacier
  5. 10. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two ____________ atoms
Down
  1. 1. ice cores contain ____________ of the air that scientists use for analysis
  2. 3. in an ice core, the temperature of the air _________ onto water molecules
  3. 5. It takes a lot of ___________ to warm up water.
  4. 7. this is a sample of earth, ice, or ocean layers that has been drilled out for analysis
  5. 8. Information from NASA's Earth satellites shows us that every summer, some _____________ ice melts and shrinks