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






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






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






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






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






7. Spiral disk with several long arms.






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






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






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






11. An ion






12. Begin as huge clouds of dust and other particles called nebulas.






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






14. Stamen






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






16. Are caused by the gravitational pull of the Moon and the Sun on the Earth.






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






18. Is the smallest unit of an element that still has the properties of that element.






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






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






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






22. One member benefits - the other is unaffected.






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






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






25. Stored energy






26. The capacity to work






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






28. 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.






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






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






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






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






33. Is a substance composed of two or more elements






34. Protects and supports the cell






35. Stores food and other materials needed by the cell






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






37. As pressure increases volume decreases


38. 1. homeostasis 2. organization 3. metabolism 4. growth 5. adaptation 6. response to stimuli 7. reproduction






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






40. 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.






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






42. The point around which a lever rotates






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






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






45. Cell begins to split






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






47. A fairly typical main sequence star.






48. Angiosperms






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






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