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






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






3. An ion






4. Force = Mass X Acceleration






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






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






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






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






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






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






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






12. 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.






13. 1. by row 2. atomic number and mass increase as you move left to right and top to bottom






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






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






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






17. Is the smallest unit of an element that still has the properties of that element.






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






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






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






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






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






23. Describes speed and direction






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






25. Duplicates genetic material






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






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






28. Cellular division to create sex cells called haploids.






29. Energy in motion






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






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






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






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






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






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






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






37. Is a change in velocity






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

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






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






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






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






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






44. The capacity to work






45. Control center of the cell






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






47. A change in position






48. Column






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






50. 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.