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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 change from one state to another without a change in chemical composition.






2. Column






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






4. Grain like organelles that produce proteins






5. Has the same number of protons and neutrons






6. As temperature increases volume also increases


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






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






9. Are huge clusters of billions of stars






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






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






12. Plants response to light






13. 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.






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






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






16. Describes speed and direction






17. Protects and supports the cell






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






19. Spiral disk with several long arms.






20. The quantity of substance






21. Stored energy






22. 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.






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






24. Energy in motion






25. 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.






26. 1. positive charge 2. located in nucleus 3. mass is 1 AMU






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






28. Is a substance that cannot be separated into simpler substances by chemical means






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






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






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






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






33. One member benefits - the other is unaffected.






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






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






36. An ion






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






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






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






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






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






42. Phase where spindle grows and which cuts the cell






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






44. Are affected by the angle from which we view the moon.






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






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






47. By wind which stirs the ocean's surface of great distances.






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






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






50. 1. mutualism 2. parasitism 3. commensalism