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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. 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.






2. 1. the more massive either or both bodies are - the greater the gravitational force between them. 2. the further apart two bodies are - the lesser the gravitational force between them.






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






4. A group of subjects upon which a hypothesis is tested.






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






6. 1. hair 2. warm - blooded 3. live birth 4. nurses their young






7. Stamen






8. The capacity to work






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






10. Is a change in velocity






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






12. Spiral disk with several long arms.






13. 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.






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






15. Is the process of storing energy through photosynthesis and later releasing it through respiration.






16. Plants response to gravity






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






18. Energy in motion






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






20. Column






21. Grain like organelles that produce proteins






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






23. 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.






24. The point around which a lever rotates






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






26. Deoxyribonucleic acid






27. Are huge clusters of billions of stars






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






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






30. As pressure increases volume decreases

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






32. Stored energy






33. A bond formed when atoms share one or more of their valence electrons.






34. By wind which stirs the ocean's surface of great distances.






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






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






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






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






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






40. That matter cannot be created or destroyed; it simply changes form.






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






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






43. Has the same number of protons and neutrons






44. 1. egg 2. tadpole (breathes water) 3. metamorphosis 4. adult frog (breathes air)






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






46. An ion






47. 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.






48. One member benefits - the other is unaffected.






49. Plants response to light






50. A fairly typical main sequence star.