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






2. Control center of the cell






3. Thin - flexible barrier around a cell; regulates what enters and leaves the cell






4. Refers to the vast periods of time over which the Earth changes.






5. 1. mutualism 2. parasitism 3. commensalism






6. 1. positive charge 2. located in nucleus 3. mass is 1 AMU






7. Spiral disk with several long arms.






8. Is a system in which small particles are kept dispersed by agitation or molecular motion in the surrounding medium - example: muddy freshwater






9. As temperature increases volume also increases

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10. Describes speed and direction






11. A bond in which on atom loses an electron to form a positive ion and the other gains an electron to form a negative ion - creating an electrostatic force which holds them together.






12. As pressure increases volume decreases

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13. Stores food and other materials needed by the cell






14. 1. neutral charge 2. located in the nucleus 3. mass is 1 AMU






15. That space and time are relative - not absolute concepts






16. Is a substance that cannot be separated into simpler substances by chemical means






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






18. Deoxyribonucleic acid






19. The quantity of substance






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






21. An ion






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

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23. 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.






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






25. Both members of a symbiotic relationship benefit






26. Calories






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






28. Within compounds - the various atoms making up molecules are held together by...






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






30. The point around which a lever rotates






31. The measure of the kinetic energy in a substance's molecules. Simply - temperature is atomic motion.






32. 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.






33. Unless an object is moving in a vacuum - the object causes...






34. Cellular division creating diploid cells which are typically capable of beginning the process again.






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






36. Matter and energy have the properties of both particles and waves






37. 1. incline plane2. wheel and axle 3. lever 4. pulley 5. wedge 6. screw






38. Plants response to light






39. Phase where spindle grows and which cuts the cell






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






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






42. 1. igneous 2. metamorphic 3. sedimentary






43. 1. solid 2. liquid 3. gas






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






45. Are huge clusters of billions of stars






46. Pulls apart into two separate cells






47. Angiosperms






48. Has a pair of chromosomes






49. Stored energy






50. Are caused by the gravitational pull of the Moon and the Sun on the Earth.