unit0-2

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Across
  1. 1. an atom or group of atoms that has an electric charge.
  2. 2. the action or process of adapting or being adapted.
  3. 7. a substance whose atoms all have the same number of protons
  4. 9. the systematic study of the structure and behavior of the physical and natural world through observation, experimentation, and the testing of theories against the evidence obtained.
  5. 12. evaluation of scientific, academic, or professional work by others working in the same field.
  6. 19. Quantitative data is numbers-based, countable, or measurable. Qualitative data is interpretation-based, descriptive, and relating to language.
  7. 20. a class of things of the same kind and with the same name
  8. 22. an uncharged atomic particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus.
  9. 23. the hierarchy of complex biological systems and structures.
  10. 25. A material made up of two or more parts or elements.
  11. 26. the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
  12. 27. the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
  13. 28. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  14. 30. A form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons
  15. 31. an individual animal, plant, or single-celled life form.
  16. 32. the structure in a cell that contains the chromosomes.
Down
  1. 1. The independent variable is the variable that is manipulated during an experiment, and it gets its name because it is independent of other factors.
  2. 3. A control group is the group in a study that does not include the thing being tested and is used as a benchmark to measure the results of the other group and is one of the two groups in any valid experiment. The experimental group is the other one and is the group in which you are testing something.
  3. 4. a group of two or more atoms that are held together by attractive forces known as chemical bonds
  4. 5. a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
  5. 6. The substances which participate in a chemical reaction
  6. 8. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
  7. 10. an experimental element which is constant (controlled) and unchanged throughout the course of the investigation.
  8. 11. a process by which one or more reactants are converted into one or more products.
  9. 13. the production of offspring by a sexual or asexual process.
  10. 14. a reaction to something.
  11. 15. the process of increasing in physical size.
  12. 16. a thing or event that evokes a specific functional reaction in an organ or tissue.
  13. 17. a chemical bond wherein there is a transfer of an electron from one atom to another.
  14. 18. the process of developing or being developed.
  15. 21. end substances after a biological process has occurred.
  16. 24. the basic unit of a chemical element.
  17. 29. a subatomic particle with a positive electrical charge.