7th Grade Science Review

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Across
  1. 3. a type of graph that shows a comparison using a series of columns to display data
  2. 9. numerical data which can be measured such as length, time, temperature, etc.
  3. 10. a variable that does not depend on changes in other variable
  4. 12. the mass of a substance divided by its volume
  5. 13. an interpretation of an observation based upon evidence and prior knowledge
  6. 14. the basic unit of all life forms
  7. 15. a form of reproduction that involves only one parent
  8. 17. organelles found in plant cells that contain chlorophyll
  9. 19. body system that breaks down food to provide energy and nutrients to the cells of the body
  10. 20. a type of cell in which the DNA is enclosed in the nucleus
Down
  1. 1. the genetic makeup of an individual
  2. 2. a trait which helps an organism or species survive
  3. 4. different forms of the same gene
  4. 5. molten rock in the earth's crust
  5. 6. a theory that explains scientific observations
  6. 7. body system that functions to transport nutrients and oxygen to all cells in the body and carry away wastes
  7. 8. a quantity whose value depends on another quantity
  8. 11. groups of different types of tissues organized together to carry out a particular set of functions
  9. 16. genotype consisting of two dominant alleles of a gene for a particular trait (AA)"
  10. 18. process during which sperm and egg unite