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Final Exam Science Study Guide by wanghonghx


									6th Grade Science Standards Study Guide

Multiple Choice
Identify the choice that best completes the statement or answers the question.

              1.    The first name of the organism's scientific name is the ____.
                    A. species                                                                        C.     genus
                    B.     family                                                                     D.     order

              2.    Of the following, which would NOT be grouped with the others?
                    A. blue jeans                                                                     C.     sweat pants
                    B.     shorts                                                                     D.     sweatshirt

              3.    Linnaeus's system gave how many names to each organism?
                    A. two                                                                            C.     one
                    B.     three                                                                      D.     four

              4.    If you know an insect is a butterfly but don't know its scientific name, it would be best to use a(n) ____ to find out.
                    A. dictionary                                                                      C. biology textbook
                    B.     encyclopedia                                                               D.     dichotomous key

              5.    To solve a problem, scientists follow a series of steps called ____.
                    A. a dichotomous key                                                              C.     classifications
                    B.     scientific methods                                                         D.     Systems or Units

              6.    Growth of many-celled organisms is mostly due to an increase in the ____ of cells.
                    A. size                                                                       C.         number
                    B.     protons                                                                    D.     all of the above

              7.    Protists can be ____.
                    A. animal-like                                                                    C.     funguslike
                    B.     plantlike                                                                  D.     all of the above

              8.    ____ use a pseudopod to move through their environment and obtain food.
                    A. Amoebas                                                                        C.     Paramecia
                    B.     Algae                                                                      D.     Saprophytes

              9.    Protists are divided into three groups based on ____.
                    A. shared characteristics                                                         C.     how they reproduce
                    B.     how they make food                                                         D.     color

            10.     Of the following, which is NOT a vascular plant?
                    A. moss                                                                           C.     fern
                    B.     pine tree                                                                  D.     horsetail

            11.     Of the following, which is NOT a characteristics of plants?
                    A. have cell walls                                                                C.     range in height
                    B.     have roots                                                                 D.     live only on land

            12.     Nonvascular plants include ____.
                    A. ferns and horsetails                                                           C.     liverworts and ferns
                    B.     horsetails and mosses                                                      D.     mosses and liverworts

            13.     Moss plants are held in place by threadlike structures called ____.
                    A. dicots                                                                         C.     guard cells
                    B.     rhizoids                                                                   D.     vascular tissue

            14.     Ferns are the most abundant of the ____ plants.
                    A. gymnosperm                                                                     C.     nonvascular
                    B.     seedless vascular                                                          D.     vascular

            15.     ____ have unique, jointed stem structures.
                    A. Club mosses                                                                    C.     Horsetails
                    B.     Ferns                                                                      D.     Spike mosses

            16.     Plants lean toward the light because of plant hormones called ____.
                    A. photoperiodism                                                                 C.     ethylene gas
                    B.     auxins                                                                     D.     all of the above

            17.     Photosynthesis is the process in which plants use energy from light to produce ____.
                    A. new cells                                                                    C. food
                    B.     organelles                                                                 D.     none of the above

            18.     Which of the following is NOT involved in photosynthesis or respiration?
                    A. water                                                                          C.     chlorophyll
                    B.     carbon dioxide                                                             D.     cytokinins

            19.     The green color of tree leaves is due to green light energy reflected from ____.
                    A. auxins                                                                        C.      chlorophyll
      B.    carbon dioxide                                                       D.    gibberellins

20.   The growth response related to the number of hours of daylight and darkness is called ____.
      A. gravitropism                                                               C. phototropism
      B.    photoperiodism                                                       D.    photosynthesis

21.   Which of the following is NOT a characteristic of animals?
      A. made of many cells
      B.    digest their food
      C.    make their own food
      D.    have cells with a nucleus and organelles

22.   A planarian is an example of a ____ flatworm.
      A. parasitic                                                               C.    free-living
      B.    mutualistic                                                          D.    none of the above

23.   Schistosomiasis is a disease caused by ____.
      A. cnidarians                                                              C.    tapeworms
      B.    roundworms                                                           D.    blood flukes

24.   ____ help sponges to filter feed.
      A. Mouths                                                                  C.    Collar cells
      B.    Tentacles                                                            D.    Spongin

25.   Cnidarians use their ____ to bring food to their mouths.
      A. stinging cells                                                          C.    larvae
      B.    tentacles                                                            D.    medusa

26.   Sponges reproduce ____.
      A. only sexually                                                           C.    only asexually
      B.    only by budding                                                      D.    asexually and sexually

27.   ____, the class that contains clams and scallops, is named for the two shells each member has.
      A. Gastropods                                                                   C. Cephalopods
      B.    Bivalves                                                             D.    none of the above

28.   What kind of arthropod has exactly eight legs?
      A. arachnid                                                                C.    centipede
      B.    crustacean                                                           D.    insect

29.   Of the following, which is NOT an echinoderm?
      A. sea star                                                                C.    sand dollar
      B.    lobster                                                              D.    sea urchin

30.   Which of these is NOT a trait of segmented worms?
      A. body separated into segments
      B.    have exoskeletons
      C.    found in soil, freshwater, and salt water
      D.    have a body cavity that holds organs

31.   To get food, earthworms eat ____.
      A. arthropods                                                              C.    fungus
      B.    soil                                                                 D.    monerans

32.   What does metamorphosis mean?
      A. change of body size                                                     C.    change of sex
      B.    change of body form                                                  D.    moving from water to land

33.   ____ feed on insects, worms, fish, and rodents.
      A. Lizards                                                                 C.    Crocodiles
      B.    Turtles                                                              D.    Snakes

34.   Of the following, which is an endothermic vertebrate?
      A. garter snake                                                            C.    shark
      B.    leopard frog                                                         D.    dolphin

35.   When a bird inhales, most of the air passes into its ____.
      A. esophagus                                                               C.    air sacs
      B.    lungs                                                                D.    cloaca

36.   A complex pattern of innate behavior is a(n) ____.
      A. reflex                                                                  C.    insight
      B.    instinct                                                             D.    none of the above

37.   Which of these is NOT a reflex?
      A. yawning                                                                 C.    smiling
      B.    sneezing                                                             D.    shivering

38.   ____ is the transfer of heat by the flow of a heated material.
      A. Radiation                                                               C.    Convection
      B.    Conduction                                                           D.    Condensation
39.   The ____ is the source of all energy in our atmosphere.
      A. Sun                                                                           C.     Moon
      B.     water cycle                                                               D.     Coriolis effect

40.   The ____ is caused by the Earth's rotation.
      A. jet stream                                                                    C.     sea breeze
      B.     Coriolis effect                                                           D.     land breeze

41.   Temperatures in the thermosphere and exosphere are ____.
      A. hot and cold                                                                  C.     very cold
      B.     constantly changing                                                       D.     very warm

42.   There are ____ molecules of air at high elevations, so air pressure is less.
      A. fewer                                                                         C.     more
      B.     the same number of                                                        D.     no

43.   The transfer of energy that occurs when molecules bump into one another is called ____.
      A. radiation                                                                 C. convection
      B.     conduction                                                                D.     condensation

44.   The ____ is the layer of the atmosphere nearest to Earth's surface.
      A. exosphere                                                                     C.     stratosphere
      B.     troposphere                                                               D.     ionosphere

45.   The air above the ____ rises because it has low density and low pressure.
      A. north pole                                                                    C.     equator
      B.     south pole                                                                D.     arctic circle

46.   Cold air has more molecules occupying a cubic centimeter of space than warm air; therefore, it has ____ pressure.
      A. higher                                                                    C. the same
      B.     lower                                                                     D.     half the

47.   The ____ are a windless zone at the equator.
      A. doldrums                                                                      C.     polar easterlies
      B.     prevailing westerlies                                                     D.     jet streams

48.   The process of water vapor changing to a liquid is called ____.
      A. evaporation                                                                   C.     condensation
      B.     precipitation                                                             D.     convection

49.   Air pressure is greatest ____ because there are more molecules of air pushing down from above.
      A. at the top of the mountain                                                  C. in the troposphere
      B.     at sea level                                                              D.     in the exosphere

50.   When water droplets in a cloud combine, become too heavy, and fall to the ground as rain, snow, sleet, or hail, we are experiencing ____.
      A. evaporation                                                               C. precipitation
      B.     condensation                                                              D.     transpiration

51.   A(n) ____ is a large body of air that has the same properties as the Earth's surface over which it develops.
      A. air mass                                                                      C. tornado
      B.     cloud                                                                     D.     front

52.   A violent, whirling wind that moves in a narrow path over land is a ____.
      A. thunderstorm                                                                  C.     hurricane
      B.     tornado                                                                   D.     front

53.   The boundary between cold and warm air masses is called a ____.
      A. front                                                                         C.     climate
      B.     storm                                                                     D.     flood

54.   When severe weather conditions already exist, a(n) ____ is issued.
      A. warning                                                                       C.     watch
      B.     advisory                                                                  D.     station model

55.   Most hurricanes ____.
      A. are high-pressure systems                                                     C.     travel east to west
      B.     gain energy when they strike land                                         D.     travel west to east

56.   Masses of puffy, white clouds, often with flat bases, that form when air currents rise are called ____ clouds.
      A. stratus                                                                       C. nimbus
      B.     cumulus                                                                   D.     cirrus

57.   ____ forms when raindrops pass through a layer of freezing air near Earth's surface, forming ice pellets.
      A. Fog                                                                         C. Hail
      B.     Sleet                                                                     D.     Rain

58.   Areas of low-pressure usually have ____.
      A. cloudy weather                                                                C.     descending air
      B.     good weather                                                              D.     none of the above

59.   The most powerful severe storm is the ____.
      A. thunderstorm                                                                  C.     hurricane
      B.     tornado                                                             D.    front

60.   A(n) ____ shows weather conditions at one specific location.
      A. isobar                                                                  C.    cloud map
      B.     isotherm                                                            D.    station model

61.   When gas, oil, and coal are burned, ____ is added to the atmosphere.
      A. chlorofluorocarbon                                                      C.    hydrogen
      B.     carbon dioxide                                                      D.    oxygen

62.   Moderate temperatures are characteristic of ____.
      A. the polar zone                                                          C.    both a and b
      B.     the tropics                                                         D.    the temperate zones

63.   Earth can be cooled greatly by ____.
      A. deforestation                                                           C.    the greenhouse effect
      B.     the burning of fossil fuels                                         D.    volcanic eruptions

64.   If there are 24 consecutive hours of darkness, then ____.
      A. it is summer near a polar region                                        C.    it is spring at the equator
      B.     it is winter near a polar region                                    D.    it is a winter day in a temperate zone

65.   A climate classification system divides regions according to ____.
      A. temperature                                                             C.    the types of plants found there
      B.     the amount of precipitation                                         D.    all of the above

66.   During El Niño, trade winds that blow east to west weaken and sometimes ____.
      A. stop                                                                     C.   speed up
      B.     reverse                                                             D.    rise

67.   Climate is different from weather in that it ____.
      A. changes more frequently                                                 C.    is more extreme
      B.     changes less frequently                                             D.    gets more attention on television

68.   A gas that increases the greenhouse effect is ____.
      A. hydrogen                                                                C.    oxygen
      B.     carbon dioxide                                                      D.    none of the above

69.   If there were no greenhouse effect, Earth's surface would ____.
      A. be too hot for life to exist                                            C.    be too cold for life to exist
      B.     be all water                                                        D.    not be affected

                                                Figure 17-1
70.   Based on Figure 17-1, the city with the biggest range in average temperatures between January and July is ____.
      A. San Francisco                                                              C. Minneapolis
      B.     Dallas                                                                       D.    Wichita

71.   As indicated in Figure 17-1, why does Minneapolis have an average temperature of –12°C in January?
      A. The sun rarely shines in January.
      B.     At its latitude in January, it receives solar radiation from directly overhead.
      C.     At its latitude in January, it receives solar radiation at an angle away from the Sun.
      D.     The solar radiation concentrates in one small area in January.

72.   Based on Figure 17-1, which city receives the most solar radiation throughout the year?
      A. Dallas                                                                       C. Wichita
      B.     San Francisco                                                                D.    Minneapolis

73.   Which receives the most solar radiation?
      A. the tropics                                                                      C.    the oceans
      B.     the polar zones                                                              D.    the temperate zones

74.   Climatologists use a classification system developed in 1918 by ____.
      A. Köppen                                                                           C.    Galileo
      B.     Einstein                                                                     D.    Wegener

75.   When a rubber band is stretched, it has ____ energy.
      A. potential                                                                        C.    chemical
      B.     kinetic                                                                      D.    nuclear

76.   In every energy transformation, some energy is always “lost” as ____ energy.
      A. chemical                                                                         C.    electrical
      B.     radiant                                                                      D.    thermal

77.   In a nuclear power plant, nuclear energy is first changed to ____ energy.
      A. electrical                                                                       C.    chemical
      B.     thermal                                                                      D.    radiant

78.   Temperature is a measure of ____ of the particles in an object.
      A. the difference between the potential and kinetic energy
      B.     the sum of the potential and kinetic energy
      C.     the average potential energy
      D.     the average kinetic energy

79.   Heat is thermal energy transferred from one object to another because of a difference in ____.
      A. mass                                                                        C. volume
      B.     temperature                                                                  D.    potential energy

80.   Water makes a good coolant because it has a ____.
      A. high specific heat                                                               C.    low specific heat
      B.     high boiling point                                                           D.    low freezing point

81.   All objects emit ____ radiation.
      A. electromagnetic                                                                  C.    thermal
      B.     kinetic                                                                      D.    solar

82.   Most materials ____ when they are heated.
      A. condense                                                                         C.    expand
      B.     freeze                                                                       D.    contract

83.   In a diesel engine, the fuel is ignited by ____.
      A. spark plugs                                                                      C.    expansion
      B.     compression                                                                  D.    glow plug

84.   Which one of the following is NOT an example of work being done?
      A. the Moon orbiting Earth
      B.     pushing a box from the bottom of a hill to the top of the hill
      C.     pulling a sled across a field covered with snow
      D.     lifting a bookbag off the floor

85.   A fixed, single pulley that is used to lift a block does which one of the following?
      A. doubles the force required to lift the block
      B.     decreases the force required to lift the block
      C.     makes the block easier to lift by changing the direction of the force needed to lift it
      D.     decreases the force required and changes the direction of the force required

86.   A device that does work with only one movement and changes the size or direction of a force is a(n) ____.
      A. compound machine                                                          C. screw
      B.     effort machine                                                               D.    simple machine

87.   The rate at which work is done is called ____.
      A. efficiency                                                                       C.    force
       B.    effort time                                                                D.    power

 88.   An inclined plane with one or two sloping sides forms a machine called a ____.
       A. pulley                                                                        C.    ramp
       B.    lever                                                                      D.    wedge

 89.   An inclined plane wrapped around a cylinder post is a ____.
       A. lever                                                                         C.    screw
       B.    ramp                                                                       D.    wedge

 90.   The buildup of electric charges on an object is called a ____.
       A. circuit charge                                                                C.    static charge
       B.    current circuit                                                            D.    current charge

 91.   An electric field gets stronger as you ____.
       A. get closer to a charge
       B.    get farther from a charge
       C.    add electrons to a positively charged object/1
       D.    remove electrons from a negatively charged object

 92.   The separation of positive and negative charges due to electric field is called a(n) ____.
       A. static charge                                                                   C. series circuit
       B.    current charge                                                             D.    induced circuit

 93.   Which of the following has the least resistance?
       A. a short, thick metal wire                                                     C.    wood
       B.    a long, narrow metal wire                                                  D.    plastic

 94.   A path created for a current that allows only one route for the current is called a ____.
       A. parallel circuit                                                                C. series circuit
       B.    parallel current                                                           D.    series current

 95.   A circuit that has two or more separate paths for electrons to follow is a(n)____.
       A. circuit breaker                                                               C.    parallel circuit
       B.    electron circuit                                                           D.    series circuit

 96.   The south pole of a magnet ____.
       A. attracts another south pole                                                   C.    attracts a north pole
       B.    repels a paper clip                                                        D.    repels a north pole

 97.   The magnetic field of a magnet is ____.
       A. the same at all parts of the magnet                                           C.    strongest at the poles
       B.    strongest at the center                                                    D.    weakest at the poles

 98.   Atoms become magnets when their ____ are properly arranged.
       A. electrons                                                                     C.    neutrons
       B.    protons                                                                    D.    positrons

 99.   The function of an electric motor is to change ____.
       A. chemical energy into electrical energy
       B.    electrical energy into chemical energy
       C.    electrical energy into mechanical energy
       D.    mechanical energy into electrical energy

100.   In a step-up transformer, the number of turns of wire is greater in the ____ coil than in the ____ coil, and the ____ voltage exceeds the ____ voltage.
       A. input, output, input, output                                                  C. output, input, input, output
       B.    input, output, output, input                                               D.    output, input, output, input

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