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






2. Occurs when heat is transferred due to fast moving atoms and molecules colliding with slower ones in a neighboring region.






3. This is the motion of objects emitting or reflecting sound waves changing their frequency.






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






5. Calories






6. Are a progressive disturbance propagated from point to point (with regularity between points)






7. 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.






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






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






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






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






12. Material inside the cell membrane -- not including the nucleus






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






14. Pulls apart into two separate cells






15. Force = Mass X Acceleration






16. 1. solid 2. liquid 3. gas






17. Cell begins to split






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






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






20. Are affected by the angle from which we view the moon.






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






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






23. One member benefits - the other is unaffected.






24. Subatomic particles including: 1. protons 2. neutrons 3. electrons






25. Is a homogeneous mixture in which one substance has dissolved into the other - example: salt water






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






27. Protects and supports the cell






28. Plants response to gravity






29. The capacity to work






30. A fairly typical main sequence star.






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






32. When the Moon and the Sun are in alignment we get more extreme tides.






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






34. The point around which a lever rotates






35. As a nebula contracts - the particles collide with colossal force igniting a nuclear reaction and forming a protostar.






36. Describes speed and direction






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






38. Occurs when chemical composition of a substance is altered.






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






40. A material that can be separated by physical means into two or more substances.






41. Causes beneficial traits to be propagated and detrimental traits to be eliminated.






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






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






44. Stamen






45. An ion






46. Has a pair of chromosomes






47. Are huge clusters of billions of stars






48. Anything that has mass and takes up space






49. Has the same number of protons and neutrons






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