science midterm 09-10

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science midterm 09-10
2010-01-17 12:31:13

science terms for the midterm
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  1. how do liquid water and capor differ from eachother
    how close the molecules are, energy
  2. if 1 kg of the compound tolune melts at -95C then 500 grams of toluene will melt at what degree?
  3. anything that has mass and takes up space is called ____
  4. the measurement of how much matter and object pertains is its
  5. in this states of matter particles are packed together in fixed possitions
  6. _____ is the process, which involves gas changing into a liquid
  7. a characteristic that can help tell similar solids apart is their ____
    melting points
  8. ____ and ___ are the same for two sample even with different mass'
    boiling point and density
  9. examples of mixtures
    salad, sugar water,
  10. when atoms join together they are calledd___
  11. the resistance of a liquid to flow
  12. the principle that the total amount of energy remains the same during physical or chemical change
    law of conservation of engergy
  13. the change in a state from a solid to a liquid
  14. the change in a states from a solid directly to a gas without passing through the liquid state
  15. the change in a state from a liquid to a gas
  16. the change in a state from a liquid to a solid
  17. a form of energy that comes from chemical bonds
    chemical energy
  18. the relationship between the temperature and volume of a gas; when temperature increase, volume increase
    charles law
  19. the force pushing on a surface divided by the area of that surface
  20. a substance that is made up of crystals in which particles are arranged in a regular repeating pattern
    crystaline solid
  21. the process when vaporization takes place inside a liquid as well as on the surface
  22. change in a state from a gas to a liquid
  23. when vaporization takes place only on the surface
  24. a term used to describe the relations ship between two variables whose graph is a straight line passing through the point 0,0
    directly proportional
  25. a solid made up of particles that are not arranged in any specific pattern
    anamorphous solid
  26. any substance that can flow
  27. the total enrgy of a substance particles due to their movement or vibration
    thermal energy
  28. a term used to describe the relationship between two variables whos graph forms a curve that slopes downward
    vary inversely
  29. what are the levels of organization in the human body
    • unicells, multicells,
    • cells, tissues, organs, organsystems, organisms
  30. what are the functions of the skeletal system
    • ir provides shape and support
    • enables you to move
    • protects your inner organs
    • produces blood cells
    • stores minerals and other materials until you need them
  31. whwat are the four types of joints, examples
    • hinge-knees elbows
    • ball-and-socket-shoulders, hips
    • pivot-neck
    • glising-wrists, ankles
  32. what are the functions of the skin?
    • covers and protects the body from injury, infections, ad water loss
    • helps regulate temperature
    • eliminates waste
    • produces vitimin d
    • information about the envoirment
  33. functions of the digestive system
    • break down food
    • absorb food into blood
    • eliminate wastes
  34. circulatory system
    • carries needed substances to cells
    • acrries waste away from cells
    • transports cells that fight disease
  35. respiratory sysem
    • moves oxygen
    • removes carbon dioxide
  36. excretory system
    collects wastes and removes them
  37. nervous system
    • recieve information about internam and external events
    • respond to the info recieved
    • maintain homeostasis
  38. endocrine system
    • produceschemicals
    • regulate change
  39. how does perspiration halp maintain body temperature
    by evaporating and carrying body heat away
  40. which organ system help deliver oxygen to body cells
    respiratory, circulatory
  41. what carries messages back and forth between the brain and every part of the bodu
    nerve tissue
  42. which organ system makes blood cells
    the skeletal
  43. which type of human body tissue can contract or shorten
    muscle tissue
  44. which substance are produced during respiration
    carbon doixide and water
  45. when the nervous system makes you feel thirsty what body process is it helping to carry out
    maintaining homeostasis
  46. what are gas exchange, diaphragm and inhale most cloesly related to
    respiratory system
  47. which body systems primary function is the continuation of the species
    reproductive system
  48. which system fuctions primarily to defend the body against deiseas
  49. cell membrane
    controls what goes in and out of a cell
  50. control center
  51. organelles
    parts of a cell
  52. mitochondria
    the generator for the cell
  53. ribosomes
    produce protein for the cell
  54. animal cells fo not have...... which cell part
    a cell wall
  55. ___________ cells are found in many-celled organisms
  56. function of a ____________ is to protect and support the cell
    cell wall
  57. what happens during meiosis
    • -sex cells
    • -1/2 chromosomes count
    • -46 chromosomes
    • -23 mother, 23 father
  58. genetic makeup
  59. physical characteristics
  60. male _ _ female _ _
    male xy female xx
  61. the gradual change in a species over a period of time
  62. a trait that helps an organism survice and reproduce
  63. the chance of an outcome
  64. homozygou
    • two alike alleles
    • BB
    • bb
    • GG
    • gg
  65. heterozy...
    • hybrid different aleles
    • Bb
    • Gg
  66. stages of mitosis
    • Interphases
    • Prophase
    • Metaphase
    • Anaphase
    • Telephase
    • Cytokinesis
  67. Interphase
    getting ready
  68. metaphase
    meet in the middle
  69. anaphase
  70. telephase
    starts to divide O=O
  71. cytokinesis
    totally split O O