Unit 2 Review

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Across
  1. 3. an organelle in plants where photosynthesis happens
  2. 5. a combination of atoms
  3. 7. the variable that the researcher changes
  4. 8. sugar, starch, fiber
  5. 9. meats, beans
  6. 11. change over time
  7. 12. a molecule made of two hydrogen atoms attached to an oxygen atom
Down
  1. 1. the process plants do to store light energy in the form of chemical energy
  2. 2. a molecule made of a ring of carbon, oxygen and hydrogen atoms
  3. 4. the variable that changes in response to the researcher's change
  4. 6. fat, oil, cholesterol
  5. 8. a chain of glucose molecules
  6. 10. the process that plants and animals do to store access chemical energy stored in the bonds of molecules