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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. H2O + CO2 --> CH2O + O2






2. The quantity of substance






3. Are huge clusters of billions of stars






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






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






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






7. 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.






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






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






10. Force = Mass X Acceleration






11. 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.






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






13. The capacity to work






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






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






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






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






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






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






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






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






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






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






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






25. Plants response to light






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






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






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






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






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






31. The point around which a lever rotates






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






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






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






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






36. An object in motion stays in motion along a straight path unless acted upon by a net external force.






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






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






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






40. A bond in which on atom loses an electron to form a positive ion and the other gains an electron to form a negative ion - creating an electrostatic force which holds them together.






41. Is a substance composed of two or more elements






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






43. When the Moon or the Sun are pulling at perpendicular angles we get less extreme tides.






44. 1. convergent 2. divergent 3. transform






45. Stored energy






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






47. As temperature increases volume also increases

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






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






50. 1. mutualism 2. parasitism 3. commensalism