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CSET Subject 2: Science

Subjects : cset, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The Moon is between the Earth and the Sun.






2. The number of protons a particular type of atom has. The atomic number defines the type of element.






3. Can occur by chemical means such as acid rain or physical means - such as wind - rain and ice.






4. As temperature increases volume also increases

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5. 1. igneous 2. metamorphic 3. sedimentary






6. An isotope created in the earth's atmosphere by cosmic rays. All living things absorb carbon 14. When they die absorption stops and the organism's existing C14 begins to radioactively decay back to C12.






7. Occurs when cooler portions of a liquid or gas flow in to take the place of hotter - rising portions.






8. 1. negative charge 2. located in the nucleus 3. mass is about 1/1836th of an AMU






9. Cellular division to create sex cells called haploids.






10. Both members of a symbiotic relationship benefit






11. Duplicates genetic material






12. The Moon and the Sun are on opposite sides of the Earth.






13. 1. Law of Inertia 2. Law of Acceleration 3. Law of Reciprocal Actions

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14. One member of a symbiotic relationship benefit.






15. It spreads the work over a greater distance along the planes of the wedge.






16. Organelle found in cells of plants and some other organisms that captures the energy from sunlight and convert it into chemical energy






17. H2O + CO2 --> CH2O + O2






18. Is a method of separating ions within a substance by passing electrical current through the substance






19. The point around which a lever rotates






20. 1. evaporation 2. condensation 3. precipitation 4. infiltration 5. runoff






21. 1. prophase 2. metaphase 3. anaphase 4. telophase






22. Because carbon bonds readily with a variety of different elements and compounds - making possible the great chemical complexity necessary for life.






23. The amount of matter that makes up an atom. You can estimate an atom's atomic mass by adding up the total number of protons and neutrons.






24. Causes salt to move across a permeable membrane from an area of greater salinity to an area of lesser salinity.






25. As pressure increases volume decreases

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26. Is the measure of the presence of hydrogen ions in a substance.






27. Pulls apart into two separate cells






28. Is the particular wavelength of light we observe that is not absorbed by an object.






29. 1. temperature (think movement) 2. pressure






30. Energy changes forms but is not created or destroyed.






31. Caused by the Earth's tilt on its axis. As it revolves arond the Sun - the tilt causes each hemisphere to receive more direct exposure at certain times in its orbit.






32. One member benefits - the other is unaffected.






33. Anything that has mass and takes up space






34. Radioactively decay back into their 'normal' forms over time






35. For every action there is an equal and opposite reaction.






36. The types of organisms an ecosystem can support is primarily determined by the amount of...






37. Protects and supports the cell






38. 1. gravity 2. magnetism 3. friction (think of a falling sheet of paper vs. a falling book)






39. When the Moon or the Sun are pulling at perpendicular angles we get less extreme tides.






40. 1. State the problem. 2. Form a hypothesis. 3. Observe and experiment. 4. Interpret the data. 5. Draw conclusions.






41. A group which resembles the experimental group in all other ways - but on which the hypothesis is not tested. In some clinical trials the control group is given a placebo.






42. Is a change from one state to another without a change in chemical composition.






43. 1. inner core 2. outer core 3. mantle 4. crust






44. Asserts that organisms have changed over time to adapt to the unique and varied demands of their changing environments.

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45. 1. mutualism 2. parasitism 3. commensalism






46. Occurs when light returns after bouncing off an object.






47. Control center of the cell






48. 1. producer 2. primary consumer 3. secondary consumer 4. tertiary consumer 5. decomposer






49. C14 dating only works on organisms that died less than _____ years ago.






50. 1. homeostasis 2. organization 3. metabolism 4. growth 5. adaptation 6. response to stimuli 7. reproduction