Ch. 2

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Across
  1. 3. All material in the universe that has mass and occupies space
  2. 7. a solution in which the concentration of hydrogen (H+) ions is greater than the concentration of hydroxide (OH-) ions
  3. 10. The process by which Earth's surface is shaped by the extremely slow movement of sections of crust.
  4. 12. The capacity to change the position, physical composition, or temperature of matter; a force that can accomplish work.
  5. 13. A combination of two or more atoms
Down
  1. 1. The smallest component of an element that maintains the chemical properties of that element
  2. 2. Sunlight powers a series of chemical reactions that convert carbon dioxide and water into sugar (glucose), thus transforming low-quality energy from the sun into high-quality energy the organism can use.
  3. 4. One of several forms of an element having differing numbers of neutrons in the nucleus of its atoms.
  4. 5. Formed from cooling magma. Granite and basalt are examples of this kind of rock.
  5. 6. Renewable energy that is generated deep within Earth.
  6. 8. An electrically charged atom
  7. 9. A macromolecule that directs the production of proteins
  8. 11. A molecule whose atoms are composed of two or more elements.