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






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






3. Is a substance composed of two or more elements






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






5. Is an object's rate of motion = Distance/Time






6. 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.






7. 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.






8. Duplicates genetic material






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






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






11. The quantity of substance






12. H2O + CO2 --> CH2O + O2






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






14. Energy in motion






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






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






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






18. Stored energy






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






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






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






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






23. Is something that starts a chemical reaction - such as a spark.






24. 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.






25. Both members of a symbiotic relationship benefit






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






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






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






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






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






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






32. 1. solid 2. liquid 3. gas






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






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






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






36. The capacity to work






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






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






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






40. Protects and supports the cell






41. Illustrates the relationship between absolute magnitude - luminosity - classification and effective temperature of stars.






42. The point around which a lever rotates






43. Plants response to gravity






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






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






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






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






48. Stores food and other materials needed by the cell






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






50. 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.