Unit 1

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Across
  1. 2. A liquid substance capable of dissolving other substances
  2. 4. A mixture that forms when one substance dissolves another.
  3. 5. acids DNA and RNA
  4. 6. an objective, verifiable observation
  5. 8. Single sugar molecules
  6. 13. A long molecule consisting of many similar or identical monomers linked together.
  7. 14. Chains of amino acids
  8. 15. the starches and sugars present in foods
  9. 17. A molecule that is a constituent of the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.
  10. 19. Basic unit of matter
  11. 21. A hypothesis that has been tested with a significant amount of data. An explanation of an observed phenomemon
  12. 24. Carbohydrates that are made up of more than two monosaccharides
  13. 26. water loving
  14. 27. the application of scientific discoveries to meet human needs and goals through the development of products and processes
  15. 28. application of science and mathematics to develop useful structures and machines
  16. 30. Energy-rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen.
  17. 31. A substance that is dissolved in a solution.
  18. 32. Basic unit of life
  19. 33. relating to, measuring, or measured by the quality of something rather than its quantity.
Down
  1. 1. variable The experimental factor that is manipulated; the variable whose effect is being studied.
  2. 3. a statement based on repeated experimental observation that describes an aspect of the world
  3. 7. group In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.
  4. 9. tension the force that acts on the surface of a liquid and that tends to minimize the area of the surface
  5. 10. A simple compound whose molecules can join together to form polymers
  6. 11. relating to, measuring, or measured by the quantity of something rather than its quality.
  7. 12. carbohydrates, lipids, proteins, nucleic acids
  8. 16. group In an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable.
  9. 18. Water fearing
  10. 20. variable The measurable effect, outcome, or response in which the research is interested.
  11. 22. a broad concept or principle. Describes patterns in nature.
  12. 23. Anything that has mass and takes up space
  13. 25. something that stays the same
  14. 29. monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base