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






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






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






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






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






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






7. 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.






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






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






10. Occurs when light returns after bouncing off an object.






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






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






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






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






15. 1. hair 2. warm - blooded 3. live birth 4. nurses their young






16. 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.






17. 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.






18. Both members of a symbiotic relationship benefit






19. Has the same number of protons and neutrons






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






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






22. 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.






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






24. Control center of the cell






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






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






27. 1. neutral charge 2. located in the nucleus 3. mass is 1 AMU






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






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






30. One member benefits - the other is unaffected.






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






32. Grain like organelles that produce proteins






33. Spiral disk with several long arms.






34. Cellular division to create sex cells called haploids.






35. Force = Mass X Acceleration






36. 1. igneous 2. metamorphic 3. sedimentary






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

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38. This is the motion of objects emitting or reflecting sound waves changing their frequency.






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






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






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






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






43. Column






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






45. Plants response to gravity






46. 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.






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






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






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






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