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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. Control center of the cell






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






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






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






5. 1. puzzle piece argument 2. sea floor spreading 3. fossil records






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






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






8. 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.






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






10. Are huge clusters of billions of stars






11. Protects and supports the cell






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






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






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






15. The quantity of substance






16. 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.






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






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






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






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






21. 1. solid 2. liquid 3. gas






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






23. Cellular division to create sex cells called haploids.






24. Pulls apart into two separate cells






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






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






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






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






29. 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.






30. 1. inner core 2. outer core 3. mantle 4. crust






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






32. An ion






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






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






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






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






37. 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.






38. Cell begins to split






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






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






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






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






43. Describes speed and direction






44. Is the process of storing energy through photosynthesis and later releasing it through respiration.






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






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


47. Deoxyribonucleic acid






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






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






50. Force = Mass X Acceleration