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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 substance composed of two or more elements






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






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






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






5. One member benefits - the other is unaffected.






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






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






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






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






10. 1. mutualism 2. parasitism 3. commensalism






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






12. Describes speed and direction






13. 1. convergent 2. divergent 3. transform






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






15. An atom that has a different number of neutrons than its normal amount.






16. Column






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






18. Plants response to gravity






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






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






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

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






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






24. A fairly typical main sequence star.






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






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






27. Pulls apart into two separate cells






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






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






30. 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.






31. A change in position






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






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






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






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






36. Stores food and other materials needed by the cell






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






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






39. Are huge clusters of billions of stars






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






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






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






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






44. Deoxyribonucleic acid






45. Spiral disk with several long arms.






46. 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.






47. Angiosperms






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






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