INT 10 Second Semester Exam 1 Review

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Across
  1. 2. The chemical symbols for the ______ elements are BrINClHOF twins.
  2. 3. This natural process creates a "heat blanket" around the planet
  3. 5. ______ currents; flow of fluids, hot fluids rise and colder fluids sink
  4. 7. Soil that is permanently frozen
  5. 9. Found in both plant and animal cells, the power plant of the cell.
  6. 10. _______ ion, an ion with more than one element
  7. 13. Chemical symbol H2S
  8. 15. Proxy records are an indirect record of past temperatures.
Down
  1. 1. states that the mass of reactants is always equal to the total mass of products
  2. 4. Products of a ________ reaction are carbon dioxide and water.
  3. 6. The stage of the cell cycle in which the nucleus is divided
  4. 8. measure of how acidic or basic something is
  5. 11. disease when cells divide uncontrollably
  6. 12. Chemical symbol Al
  7. 14. Found in only plant cells, provides support, strength, and protection