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






2. Duplicates genetic material






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






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






5. An atom with an imbalanced charge






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






7. 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.






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






9. 1. convergent 2. divergent 3. transform






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






11. 1. mutualism 2. parasitism 3. commensalism






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






13. An ion






14. Cell begins to split






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






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






17. Is a change in velocity






18. A change in position






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






20. Energy in motion






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






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






23. Describes speed and direction






24. 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.






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






26. 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.






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






28. Deoxyribonucleic acid






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






30. Has the same number of protons and neutrons






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






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






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






34. A fairly typical main sequence star.






35. 1. Law of Inertia 2. Law of Acceleration 3. Law of Reciprocal Actions

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






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






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






39. Thin - flexible barrier around a cell; regulates what enters and leaves the cell






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






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






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






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






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






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






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






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






48. 1. kingdom 2. phylum 3. class 4. order 5. family 6. genus 7. species






49. 1. solid 2. liquid 3. gas






50. Has a pair of chromosomes