1. What interaction between organisms would be described as ...

1. What interaction between organisms would be described as ...

between organisms would be described as parasitic? A. a mosquito feeding on the blood of a dog B. a bee gathering nectar and pollen from a flower C. a cleaner shrimp picking dead skin off a large fish D. a nonpoisonous snake mimicking a

underground, compressed in a layer between other types of rock. Coal is produced by rock-forming process? A.what crystallization from melted rock B. formation of sediment from weathering

C. deposition and burial of dead plant matter D. eruption of volcanic ash followed by settling in a layer by burning fossil fuels. A family living in central Ohio uses electric appliances for cooking and air conditioning. They use fuel oil for heating. What change could this family make A. convert

to naturalfossil gas as a fuel for to conserve fuels? cooking B. switch to the use of less expensive coal for heat C. lower the temperature setting on the air conditioner D. install solar roof panels to generate

of robins, squirrels and rabbits. The robins and squirrels live in the parks trees. The robins feed on earthworms and insects that live on the ground. The squirrels eat the acorns produced by the parks oak trees. The rabbits hide in the bushes and feed on the grass. Which factor would directly limit the number of rabbits that could A. number of

robins live in this park? B. number of bushes C. number of acorns D. number of squirrels 5. In which environment is white fur color an advantage for survival?

A. desert B. grassland C. arctic tundra D. temperate forest 6. What is the major process of surface rock formation on volcanoes? A. Rock cools quickly from melted rock. B. Rock is recrystallized by extreme pressure. C. Rock solidifies slowly deep underground. D. Rock is formed from deposited sediment.

7. Which cell structure carries out a function for a cell that is similar to the function that bark carries A. cell wallout for a tree? B. nucleus C. chloroplast D. mitochondrion 8. Why is coal considered to be a

nonrenewable energy source? A. Sunlight is the original source of energy for coal. B. The burning of coal could cause environmental pollution. C. Once coal is mined, it can take millions of years to be replaced. D. Coal is abundant, but it is very expensive to mine from underground.

9. Why do satellites and spacecraft launched from Earth need to reach a specific speed to escape Earths surface? A. to overcome Earths gravitational force B. to protect equipment from radiation

C. to break through the sound barrier 10. Which is an example of a group of cells with a common structure and function? A. stomach B. muscle tissue C. mitochondria D. digestive system

occur as a result of the gravitational attraction between the moon and Earth? A. eclipses B. ocean tides C. seasonal changes D. phases of the moon

12. Electricity is produced in a hydroelectric plant when moving water turns a turbine. Which describes this energy transformation from the turning turbine to electricity? A. kinetic energy into electric energy B. nuclear energy into electric

energy C. thermal energy into electric energy D. chemical energy into electric would occur if Earths rate of rotation significantly increased? A. The year would be shorter.

B. The year would be longer. C. The day would be shorter. D. The day would be longer. 14. Bass tapeworms attach to the gills and intestines of bass fish. These worms survive by taking nutrients from the bass. What type of relationship does this A. represent?

predation B. parasitism C. mutualism D. commensalism forests. Fungi release chemicals onto the leaves to break them down into smaller particles. The fungi use the small particles for growth. Which process

allows fungi to obtain the nutrients they need from dead A. circulation leaves? B. digestion C. reproduction D. respiration 16. Which is a major advantage of using energy sources such as sunlight, wind

and running water instead of fossil fuels, such as coal and A. Sunlight, wind andgas? running water natural are much more efficient than fossil fuels. B. Sunlight, wind and running water are renewable and available indefinitely. C. Sunlight, wind and running water

are much less expensive to use than 17. The sun is a midsized, main sequence star. What stage is next in the life cycle of the sun? A. red giant B. black hole C. white dwarf

D. neutron star 18. Aphids are small insects that sometimes live near ants. The ants protect the aphids from predators. The aphids produce a sweet substance that the ants eat. Which statement describes the relationship between ants A. Both antsand and aphids? aphids benefit.

B. Both ants and aphids are unaffected. C. The ants benefit and the aphids are harmed. D. The aphids benefit and the ants 19. Which two plant cell structures are responsible for storing energy from sunlight and later releasing it for cells to use?

A. chloroplast and mitochondrion B. mitochondrion and cell wall C. chloroplast and nucleus measurement do astronomers use when measuring the distance between two stars found in the Milky Way? A. meter

B. light-year C. kilometer D. astronomical unit 21. The energy of blowing wind can be harnessed to create electricity. Why is wind considered a renewable energy source? A. Wind does not cause destruction of

the environment. B. Wind turns the blades of a windmill that creates electricity. C. Wind provides only a very small amount of electricity to the United States. D. Wind comes from atmospheric 22. What is the role of the mitochondrion in A. It converts

sunlight to cells? energy. B. It controls all functions of the cell. C. It transports water throughout the cell. D. It breaks down sugar to 23. Why are fossil fuels called

nonrenewable resources? A. They make waste products. B. They are buried far underground. C. They take a very long time to produce. 24. In what ways do animals depend on the

sun for energy? A. animals convert sunlight to chemical energy. B. the skin of animals absorb the energy in sunlight. C. Animals get energy by eating organisms that use sunlight to make food. D. animals depend on fossil 25. An adaptation is a

characteristic that improves an organisms chance of A. behaving instinctively B. Fossilizing after death C. Surviving and reproducing successfully D. Learning a new behavior 26. Which of the following muscles moves your bones?

A. skeletal B. cardiac C. involuntary D. smooth 27. A deer population leaves an area. Which of the following situations most likely describes why A. the deers they left?

natural predators left the area B. The deer population fell below its carrying capacity C. The deers niche changed D. food became a limiting factor when the deer ate too many following shows division of geological time from largest to

smallest? A. Periods, eons, epochs, eras B. Eons, eras, periods, epochs C. eras, periods, epochs, 29. A warm air mass slides over a cold air mass forming a(n) A. B.

C. D. cold front warm front occluded front stationary front 30. Which of the following is a nonrenewable resource?

A. Solar energy B. Wind energy C. Natural gas D. Hydroelectric energy 31. Which of the following is not true about gas giants? A. B. C.

D. They have many moons. They have ring systems. They are rocky. They are large. 32. In a chemical equation,

A. Products are always shown on the right side and the reactants on the left side. B. Reactants are always shown on the right side and the products on the left side. C. Products and reactants are both shown on the right side. D. Mass is not conserved. 33. You push on a box, but it doesnt move.

What force opposes your push? A. B. C. D. momentum friction gravity lift

34. In a transverse wave, the particles move A. back and forth B. up and down C. in a circle D. in no certain pattern 35. What condition is necessary for heat to

move from one object to another? A. The objects must touch. B. Radiation must occur. C. The objects must be at different temperatures. D. Liquids and gases form currents. question, what is the density of this block of wood? Sam can most

easily answer this A. making question by measurements B. stating a hypothesis C. doing an experiment 37. Which tool would you use to measure the length of a ramp? A.

B. C. D. meter stick compass stopwatch spring scale chromatids of a chromosome separate during

mitosis they break inbecause half. A. B. the spindle fibers pull them to opposite sides of the cell. C. they will form two different sex cells. D. Both A and B

39. The imprint of an animal track in sedimentary rock is an example of a A. B. C. D. rock fossil cast fossil

mold fossil trace fossil 40. Where does oxygen-poor blood go when it leaves the heart? A. the brain B. the body C. the lungs D. none of the

41. Which of the following is an example of a pioneering species? A. tree B. shrub C. grass D. lichen 42. Faults are not associated with

A. earthquakes B. tectonic plate movements C. hot spots 43. The ozone layer, which protects living things on Earth from harmful ultraviolet radiation, is found in which layer of the A. troposphere atmosphere?

B. stratosphere C. mesosphere D. thermosphere 44. The section of DNA that controls a trait is called a A. chromosome B. gene C. chromatid D. mutation

shoebox as a container to hold your CDs. This is an example of a conservation method A. selective cutting called B. reducing C. reusing D. recycling

46. The inner planets are made of heavier elements because A. temperatures were cooler closer to the sun B. light elements vaporize close to the sun C. light elements did not exist in early stages of the solar system D. the inner planets formed from gas giants

47. An atom of chorine has 17 electrons. The number of electrons in chorines third energy level is A. 17 B. 15 C. 7 D. zero 48. The force of gravity

between two objects is when A. thestrongest masses of both objects are large and they are far apart. B. the masses of both objects are small and they are close together. C. one mass is large and the other small and they are far apart. D. both masses are large and

49. Wave A has a higher frequency than Wave B. Their speeds are the same. How do the wavelengths to two waves compare? A. Wave As wavelength is longer. B. Wave Bs wavelength is longer. C. The wavelengths are the

same. 50. Which material has the highest specific heat capacity? A. B. C. D. wood

metal cloth water field. You need to find out which direction a river flows. Which tool can help you determine this information? A.

B. C. D. probe meterstick stopwatch compass 52. What is homeostasis? A. the breakdown of food to

release energy B. the process plant cells use to make food C. the maintenance of stable internal conditions D. the division of the nucleus in the cell cycle 53. The geological era during which most life appeared on Earth is the

A. B. C. D. Precambrian Paleozoic Mesozoic Cenozoic 54. Which of the following describes the

movement of the diaphragm as you inhale A. The diaphragm relaxes and moves down. B. The diaphragm contracts and moves down. C. The diaphragm contracts and moves up.

D. The diaphragm relaxes and 55. What is the importance of nitrogen fixation? A. Without it, groundwater would not contain enough nitrogen. B. Without it, nitrogen could not return to the atmosphere. C. Without it, most living things could not take in the nitrogen

they need. 56. What kind of stress does a stretched metal spring represent? A. tension B. compression C. folding D. faulting 57. Which of the

following shows the proper sequence of the formation of coal? A. anthracite, bituminous, lignite, peat B. lignite, peat, anthracite, bituminous C. bituminous, lignite, peat, anthracite D. peat, lignite, bituminous,

58. What causes night and day? A. B. C. D. Earths distance from the sun Earths revolution Earths rotation Earths elliptical orbit

59. An element that is solid at room temperature, ductile, malleable, shiny and a good conductor is probably a A. nonmetal B. metal C. metalloid D. base 60. Momentum

depends on A. mass and velocity B. mass and acceleration C. force and friction D. force and 61. Which of the following waves are produced by the sun? A. infrared B. x rays

C. gamma rays D. all of the above 62. Mark touches a penny, a wool sweater and a glass of juice that have all been left in the sun for the same amount of time. Which feel the warmest? A. the penny B. the sweater C. the juice D. all are the same temperature

to find the weight of an object. In which units will you record your measurements? A. grams B. newtons C. kilometers D. kilograms 64. Sponges have

A. bilateral symmetry B. radial symmetry C. a gut D. an asymmetrical body plan 65. Diabetes is a disease in which the pancreas does not produce enough insulin. Which of the following is most likely to occur as a result of having diabetes? A. The level of sugar in the blood is high.

B. The level of sugar in the blood is low. C. The liver starts releasing sugar. 66. What role do decomposers play in the carbon cycle? A. They turn carbon dioxide into sugar. B. They break down the remains of

dead organisms, returning carbon to the environment. C. They fix nitrogen into nitrogen compounds. D. They use carbon in the soil to 67. An igneous rock with fine grains A. cooled slowly below Earths surface B. cooled slowly on Earths

surface C. cooled quickly below Earth's surface 68. Energy from inside Earths crust is called A. geothermal energy B. hydroelectric energy C. solar energy D. wind energy

69. Astronauts can live and work aboard a A. space telescope B. space shuttle C. space station D. space probe 70. Which statement about particles in an atom is false? A. Electrons have a negative charge.

B. Protons have a positive charge. C. The number of electrons equals the number of protons. Which of the following is true about acceleration? A. An unbalanced force produces acceleration. B. Acceleration is a change in

either speed or direction. C. Acceleration describes both speeding up and slowing down. D. all of the above 72. In which material does sound travel the fastest? A. water B. oxygen C. wood D. air

73. Where is the magnetic field of a bar the weakest? A. at the ends B. at the poles C. in the middle D. at the north pole 74. The magnification of the eyepiece on a compound microscope is 10x. The magnification of the objective lens is 40x. What is the total magnification?

A. 4x B. 10x C. 40x D. 400x 75. An advantage of using biomass as a source of energy is that it A. is clean. B. is renewable.

C. is highly concentrates. D. requires little land. 76. While a solid is melting, the thermal energy absorbed A. raises the temperature of the substance. B. breaks the attractive forces holding the solid together.

C. increases the kinetic energy of the substance. D. creates new chemical bonds action and reaction states that A. an action force is always greater than a reaction force. B. an action force is always less than a reaction force. C. pairs of action and reaction forces

always cause motion D. forces come in pairs 78. What wave property controls the loudness of a sound? A. pitch B. frequency C. wavelength D. amplitude

79. Ohms law shows the relationship between which factors in a circuit? A. current, voltage, resistance B. current, voltage, amplitude C. voltage, resistance, 80. A solution with a pH of 3 is A. an acid

B. a base C. a neutral substance 81. Which of the following waves carries the most energy? A. radio waves B. gamma waves C. visible light waves

82. All the populations living within an area make up a(n) A. organism B. species C. community D. ecosystem 83. What process break rocks down

into sediment? A. weathering and erosion B. cementing and compacting C. heat and pressure D. melting followed by 84. What cell structure is responsible for regulating the materials that enter and exit the cell?

A. cell wall B. plasma membrane C. cytoplasm morning, you noticed that your driveway is wet. You say to yourself, It rained last night. this statement is an example of a/an A. observation

B. conclusion C. hypothesis D. inference 86. Which is an example of an instinctive behavior adaptation? A. gills of a fish B. fur color of polar bears C. migration of some birds

87. A car travels a total distance of 250 km in 5 hours. What is the average speed of the cars? A. 250 km/h B. 125 km/h C. 50 km/h D. 25 km/h 88. Dylan uses a balance to find the mass of a rock. He then uses a graduated cylinder and water to determine the rocks volume. What property of the rock can Dylan also determine

using these measurements? A. malleability B. conductivity C. solubility D. density 89. Which planet makes one complete orbit around the sun in the shortest period of time? A. Pluto

B. Jupiter C. Earth D. Mercury 90. Which is an example of a nonrenewable natural resource? A. minerals B. sunlight C. plants D. oxygen

91. To which human body system does cartilage belong? A. muscular B. digestive C. skeletal D. nervous 92. You are conducting an investigation on how mass affects the speed at which a

toy car travels down a ramp. Which of the following can help you be more sure about data A. Estimate you all measurements. collect? B. Carry out several trials following the same procedure. C. State a hypothesis. D. Carry out several trials varying the height of the ramp each time.

93. Which energy resource creates the least amount of pollution when used to generate electricity? A. wind B. coal C. oil D. natural gas following is not required when working with

chemicals in the laboratory? A. heat-resistant gloves B. a lab apron C. safety goggles D. disposable plastic 95. Which of the following allows new traits to appear in a species?

A. over population B. variation and mutation C. asexual reproduction D. predation and relationship between the blood, heart and blood vessels in the cardiovascular system of A. Theythe work human

separately to regulate body body? activities. B. They work separately to support the body and permit movement. C. They work together to break down food into usable forms. D. They work together to carry nutrients to cells and carry away their wastes. 97. Which of the

following are biotic parts of soil? A. sand and salt B. rock particle C. bacteria and fungi 98. Which of the following is not a physical property of matter? A. malleability

B. ability to burn C. volume D. conductivity set up a weather station at your school. What tool will they need to use to determine relative humidity? A. thermometer B. psychrometer

C. barometer D. anemometer 100. You look at a banana and observe that it has a yellow color. Why does the banana look yellow? A. It refracts all visible light. B. It absorbs only yellow light.

C. It reflects only yellow dissolve the minerals in some types od rocks. This action is an example of A. mechanical weathering B. abrasion C. ice wedging D. chemical

102. Which is an example of a natural satellite? A. the sun B. Earths moon C. a space telescope D. the stars of the Milky 103. What is the first stage in the life cycle of a star? A. white dwarf

B. helium nucleus C. nebula D. supergiant 104. You place a metal spoon in a cup of hot tea. In s few minutes, the spoon feels hot. What process heats the spoon?

A. conduction B. convection C. evaporation D. radiation of an unknown liquid. You want to find out if the substance is an acid or a base. What is the best way to determine this A. smell information?

the substance B. use an indicator C. feel the substance

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