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






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






3. Control center of the cell






4. Is something that starts a chemical reaction - such as a spark.






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






6. 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.






7. 1. igneous 2. metamorphic 3. sedimentary






8. Forms the key building block at an atomic level.






9. Is a substance composed of two or more elements






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






11. Grain like organelles that produce proteins






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






13. Calories






14. The point around which a lever rotates






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






16. 1. puzzle piece argument 2. sea floor spreading 3. fossil records






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






18. Is an object's rate of motion = Distance/Time






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






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






21. 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.






22. Stored energy






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






24. Our solar system is made up of numerous bodies which orbit the Sun due to...






25. Cellular division to create sex cells called haploids.






26. Stores food and other materials needed by the cell






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

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28. The quantity of substance






29. 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.






30. 1. egg 2. larvae 3. pupae/crysalis 4. imago/adult butterfly






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






32. As temperature increases volume also increases

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33. 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.






34. An atom with an imbalanced charge






35. Begin as huge clouds of dust and other particles called nebulas.






36. The Moon is between the Earth and the Sun.






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






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






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






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






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






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






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






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






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






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






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






48. Deoxyribonucleic acid






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






50. Require a medium and travel much slower than light.







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