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






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

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3. The quantity of substance






4. As pressure increases volume decreases

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






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






7. Deoxyribonucleic acid






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






9. One member of a symbiotic relationship benefit.






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






11. 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.






12. The capacity to work






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. 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.






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






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






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






18. Energy in motion






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






20. Force = Mass X Acceleration






21. Occur because the shadow of the Earth or the Moon is cast onto the other body.






22. Anything that has mass and takes up space






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






24. 1. convergent 2. divergent 3. transform






25. 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.






26. The time required by half the atoms of a particular substance to disintegrate






27. The point around which a lever rotates






28. Grain like organelles that produce proteins






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






30. States that all of the Earth's continents at one time were joined as a single 'super - continent' called Pangaea. Over time - the continents drifted apart.






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






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






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






34. 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.






35. Occurs when light is bent while passing from one medium into another.






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






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






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






39. 1. mutualism 2. parasitism 3. commensalism






40. An atom with an imbalanced charge






41. Converts energy from food to energy the cell can use






42. Duplicates genetic material






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






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






45. 1. solid 2. liquid 3. gas






46. Angiosperms






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






48. H2O + CO2 --> CH2O + O2






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






50. A fairly typical main sequence star.