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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. Describes speed and direction






2. Stores food and other materials needed by the cell






3. 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.






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






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






6. Control center of the cell






7. As temperature increases volume also increases

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






9. A group of subjects upon which a hypothesis is tested.






10. Are huge clusters of billions of stars






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






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






13. A fairly typical main sequence star.






14. Force = Mass X Acceleration






15. Is a change in velocity






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






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






18. 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.






19. One member benefits - the other is unaffected.






20. Has a pair of chromosomes






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






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






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






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






25. Column






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






27. A change in position






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






29. 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.






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






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






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






33. Occurs when heat is transmitted in the form of electromagnetic waves.






34. H2O + CO2 --> CH2O + O2






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






36. Cell begins to split






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






38. Duplicates genetic material






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






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






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






42. The point around which a lever rotates






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






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






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






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






47. The capacity to work






48. 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.






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






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