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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 system in which small particles are kept dispersed by agitation or molecular motion in the surrounding medium - example: muddy freshwater






2. Both members of a symbiotic relationship benefit






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






4. One member benefits - the other is unaffected.






5. A change in position






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






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






8. H2O + CO2 --> CH2O + O2






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






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






11. Grain like organelles that produce proteins






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






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

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14. Is a method of separating ions within a substance by passing electrical current through the substance






15. The quantity of substance






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






17. Plants response to light






18. Causes beneficial traits to be propagated and detrimental traits to be eliminated.






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






20. Describes speed and direction






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






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






23. The point around which a lever rotates






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






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






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






27. As temperature increases volume also increases

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






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






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






31. Cellular division to create sex cells called haploids.






32. 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.






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






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






35. 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.






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






37. 1. prophase 2. metaphase 3. anaphase 4. telophase






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






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






40. An object in motion stays in motion along a straight path unless acted upon by a net external force.






41. Is a substance composed of two or more elements






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






43. Force = Mass X Acceleration






44. Calories






45. 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.






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






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






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






50. Plants response to gravity