Across
- 3. well-tested explanation that unifies a broad range of observations and hypotheses
- 8. data that cannot be counted or measured
- 9. DNA, the universal genetic code
- 12. information gathered in an experiment
- 13. A change in allele frequencies in a population over time.
- 14. an experiment in which only one variable is changedcontrol group
- 15. variable that changes in response to the independent variable
Down
- 1. a group that is tested on everything except for the changed variable
- 2. Data that is in numbers
- 4. scientific explanation for a set of observations that can be tested in ways that support or reject it
- 5. act of noticing and describing events or processes in a careful, orderly way
- 6. A change in an organism's surroundings that causes the organism to react.
- 7. The smallest, functional unit of life.
- 10. variable that is deliberately changed in an experiment
- 11. All of the reactions that occur as your body breaks down food into molecules that cells can use.