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






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






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






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






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






6. 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.






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






8. 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.






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






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






11. Pulls apart into two separate cells






12. 1. solid 2. liquid 3. gas






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






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






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






16. H2O + CO2 --> CH2O + O2






17. Converts energy from food to energy the cell can use






18. Stores food and other materials needed by the cell






19. 1. the more massive either or both bodies are - the greater the gravitational force between them. 2. the further apart two bodies are - the lesser the gravitational force between them.






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






21. Deoxyribonucleic acid






22. Stamen






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






24. Plants response to light






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






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






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






28. An atom with an imbalanced charge






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






30. 1. mutualism 2. parasitism 3. commensalism






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






32. Are huge clusters of billions of stars






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






34. Grain like organelles that produce proteins






35. Spiral disk with several long arms.






36. 1. gravity 2. magnetism 3. friction (think of a falling sheet of paper vs. a falling book)






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






38. Cellular division to create sex cells called haploids.






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






40. Anything that has mass and takes up space






41. Both members of a symbiotic relationship benefit






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






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






44. 1. convergent 2. divergent 3. transform






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






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






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






48. Is an object's rate of motion = Distance/Time






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






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