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FTCE MIDDLE GRADES SCIENCE 5-9 EXAM | ALL
QUESTIONS AND CORRECT ANSWERS | VERIFIED
ANSWERS | ALREADY GRADED A+ | LATEST EXAM
Which of the following ocean currents is a cool current encircling Antarctica? A. California Current B. Brazil Current C. West Wind Drift D. Gulf Stream ---------CORRECT ANSWER-----------------C Where do oceanic trenches form? A. Trenches form along divergent plate boundaries. B. Trenches form along convergent plate boundaries. C. Trenches form where freshwater meets seawater. D. Trenches normally form near the middle of tectonic plates. --------- CORRECT ANSWER-----------------B Rocks that are formed by layers of deposited earth or other materials are called A. igneous rocks. B. sedimentary rocks. C. metamorphic rocks. D. precipitated rocks. ---------CORRECT ANSWER-----------------B Which mineral is highest on the Mohs hardness scale? A. calcite B. talc C. diamond D. quartz ---------CORRECT ANSWER-----------------C
Which layer of the Earth's atmosphere is closest to space? A. exosphere B. mesosphere C. thermosphere D. troposphere ---------CORRECT ANSWER-----------------A What cloud formations usually cover the sky in a uniform gray? A. cumulus B. cirrus C. altocumulus D. stratus ---------CORRECT ANSWER-----------------D Hills of sand built by wind-related processes are known as A. karst topography. B. dunes. C. loess deposits. D. crevasses. ---------CORRECT ANSWER-----------------B The release of chlorofluorocarbons into Earth's atmosphere has been shown to A. deplete ozone. B. pollute groundwater. C. increase greenhouse gases. D. weather sedimentary rock. ---------CORRECT ANSWER-----------------A During summer in the Southern hemisphere, the Northern hemisphere experiences A. summer. B. winter. C. spring.
The revolution of planets around the Sun comes from this view of celestial motion. A. geocentric B. nebulian C. heliocentric D. polycentric ---------CORRECT ANSWER-----------------C The DNA of eukaryotes can be found in the A. nucleus. B. ribosomes. C. lysosomes. D. cytoplasm. ---------CORRECT ANSWER-----------------A Which cell organelle is responsible for the transport of proteins? A. mitochondria B. endoplasmic reticula C. centriole D. lysosome ---------CORRECT ANSWER-----------------B In humans, Trisomy 21 due to nondisjunction usually results in an individual with A. Multiple Sclerosis B. Crohn's Disease C. Parkinson's Disease D. Down Syndrome ---------CORRECT ANSWER-----------------D What is the inheritance pattern typified by a 3:1 phenotype ratio? A. complete dominance in a dihybrid cross B. complete dominance in a monohybrid cross C. incomplete dominance in a monohybrid cross D. incomplete dominance in a dihybrid cross ---------CORRECT ANSWER-- ---------------B
The substance that goes through a process of translation within cells in order for proteins to be synthesized is A. DNA. B. mRNA. C. chlorophyll. D. cytoplasm. ---------CORRECT ANSWER-----------------B What classification of protozoan uses pseudopods as a means of locomotion? A. sarcodina B. mastigophora C. cnidospora D. sporozoa ---------CORRECT ANSWER-----------------A Which kingdom of scientific classification does the duck-billed platypus belong to? A. vertebrata B. chordata C. animalia D. mammalia ---------CORRECT ANSWER-----------------C Before reaching the ovary, in mature flowers pollen is received by the A. sepals. B. anther. C. stigma. D. filament. ---------CORRECT ANSWER-----------------C In human circulation, which of the following is responsible for carrying oxygen to cells throughout the body?
Which of the following is associated with dissolutioned rock, such as limestone? A. wind erosion B. sinkholes C. sand dunes D. rust ---------CORRECT ANSWER-----------------B A change in the types of species of an ecological community over time is known as A. succession. B. infestation. C. rehabitation. D. intrusion. ---------CORRECT ANSWER-----------------A Which of the following has been shown to upset homeostasis in the human body? A. perspiration B. respiration C. circulation D. stress ---------CORRECT ANSWER-----------------D These organisms mainly obtain their energy from producers. A. primary consumers B. omnivores C. carnivores D. tertiary consumers ---------CORRECT ANSWER-----------------A A physics teacher plans to have students work with pendulums made from string and washers. His planned activity is A. appropriate only if all parents have given their permission. B. inappropriate for students to perform regardless of parental permission.
C. permissible so long as students are wearing appropriate eye protection. D. subject to approval by the science department head. ---------CORRECT ANSWER-----------------C The appropriate device used to measure the distance travelled by automobile is a(an) A. galvanometer. B. pedometer. C. odometer. D. o-scope. ---------CORRECT ANSWER-----------------C A solution with a pH of 5 is considered to be A. acidic B. neutral C. alkaline D. concentrated ---------CORRECT ANSWER-----------------A Which of the properties listed below is a characteristic of a liquid but not of a gas? A. It has the ability to flow. B. It maintains its volume in an open container. C. Its molecules are constantly in motion. D. Its volume varies depending on temperature. ---------CORRECT ANSWER-----------------B A 0.100 m3 chamber is filled with oxygen gas at standard conditions ( kPa at 273 k). Assuming ideal conditions and behavior, what will be the pressure of the gas in the chamber after it is heated to 819 k? A. 34 kPa B. 51 kPa C. 202 kPa D. 303 kPa ---------CORRECT ANSWER-----------------D
B. decomposition C. double displacement D. single displacement ---------CORRECT ANSWER-----------------A According to Hooke's Law, the relationship between the elastic force and the distance of stretch for an elastic material is A. inversely proportional. B. directly proportional. C. exponential. D. power squared. ---------CORRECT ANSWER-----------------B A ball rolls off a horizontal table and hits the floor at a faster vertical speed than when it leaves the table. This is an example of which law of objects in motion? A. Newton's 1st law B. Newton's 2nd law C. Kepler's 1st law D. Kepler's 2nd law ---------CORRECT ANSWER-----------------B The pitch of a car's horn changes as the car approaches. This is an example of A. constructive interference. B. destructive interference. C. diffraction. D. the Doppler effect. ---------CORRECT ANSWER-----------------D Two identical objects with identical electrostatic charges will A. repel one another. B. attract one another. C. have no effect on each other. D. emit a spark. ---------CORRECT ANSWER-----------------A
The device that converts electric energy to mechanical energy by the use of magnetic forces is a (an) A. generator. B. transformer. C. motor. D. rectifier. ---------CORRECT ANSWER-----------------C Which phase change releases energy? A. melting B. evaporation C. condensation D. sublimation ---------CORRECT ANSWER-----------------C Which of the following contains the greatest amount of thermal energy? A. burning candle B. cup of coffee C. oak tree D. lake ---------CORRECT ANSWER-----------------D The input electrical energy of an overhead projector results in light emission, heat emission, and mechanical motion of the fan. This is a demonstration of A. conservation of energy. B. excess input energy. C. decrease in entropy. D. total loss of energy. ---------CORRECT ANSWER-----------------A The splitting of the nucleus of U-235 into two or more fragments is called A. alpha decay. B. beta decay.
The time known as the "coal age" occurred during which geologic era? A. Precambrian B. Cenozoic C. Mesozoic D. Paleozoic ---------CORRECT ANSWER-----------------D Identify the best method of determining the age of a single rock sample that contains no fossils. A. radioactive dating B. examination of mineral content C. application of the law of superposition D. crystal analysis ---------CORRECT ANSWER-----------------A Which of the following surface ocean currents is known for being warm, fast, and narrow? A. California Current B. Canary Current C. West Wind Drift D. Gulf Stream ---------CORRECT ANSWER-----------------D How do oceanic ridges differ from trenches? A. Ridges include extremely deep ocean structures; trenches refer to shallow ocean structures. B. Ridges mark divergent plate boundaries; trenches mark convergent plate boundaries. C. Ridges are referred to as the "shoulder" of the continents; trenches are found in the middle of the oceans. D. Ridges are the slopes from the continental shelf to the abyssal plain; trenches are where freshwater meets seawater. ---------CORRECT ANSWER-----------------B The average salinity level of seawater in parts per thousand is closest to
A. 10.
B. 15.
C. 35.
D. 50. ---------CORRECT ANSWER-----------------C
Rocks that have cooled from the molten state are called A. igneous rocks. B. sedimentary rocks. C. metamorphic rocks. D. precipitated rocks ---------CORRECT ANSWER-----------------A Which list of minerals is arranged in order from lowest to highest, using the Mohs hardness scale? A. quartz, diamond, talc, calcite B. diamond, quartz, calcite, talc C. talc, calcite, quartz, diamond D. calcite, quartz, talc, diamond ---------CORRECT ANSWER-----------------C How does the stratosphere differ from the troposphere? A. Atmospheric pressure increases with height in the stratosphere. B. The stratosphere is in contact with Earth's surface. C. Most day-to-day weather originates in the stratosphere. D. Temperatures increase with height in the stratosphere. --------- CORRECT ANSWER-----------------D What major cloud formation is associated with warm, moist, rapidly rising air? A. cirrocumulus B. cirrostratus C. cumulonimbus D. nimbostratus ---------CORRECT ANSWER-----------------C
An astronomer viewing a distant star notices the star's spectral lines are shifted toward longer wavelengths. This indicates the star is A. moving toward the Earth. B. very old. C. very young. D. moving away from the Earth. ---------CORRECT ANSWER-----------------D A component of the solar system that consists of a nucleus, a dust tail, and an ion tail is a(an) A. asteroid. B. comet. C. meteor. D. meteorite. ---------CORRECT ANSWER-----------------B What is the name of the cloud of gas and dust that, in theory, condenses to form a planetary system? A. galaxy B. constellation C. nebula D. comet ---------CORRECT ANSWER-----------------C Saltwater surged into a pond, causing the Elodea population to decrease. What process contributed to the decrease in the population of these plants? A. Saltwater is hypertonic, so water diffused into the plant cells. B. Saltwater is hypertonic, so water diffused out of the plant cells. C. Saltwater is hypotonic, so water diffused out of the plant cells. D. Saltwater is hypotonic, so water diffused into the plant cells. --------- CORRECT ANSWER-----------------B Which of the following is a distinguishing characteristic of prokaryotes? A. no nucleus
B. no cell wall C. cell organelles D. mitochondria ---------CORRECT ANSWER-----------------A A muscle cell contains a large number of which organelles? A. lysosomes B. endoplasmic reticula C. nuclei D. mitochondria ---------CORRECT ANSWER-----------------D In humans, nondisjunction during meiosis may result in which of the following irregularities? A. cystic fibrosis B. pleiotropy C. sickle cell D. Down syndrome ---------CORRECT ANSWER-----------------D What is the inheritance pattern typified by a 9:3:3:1 phenotype ratio in the F-2 generation? A. complete dominance in a dihybrid cross B. complete dominance in a monohybrid cross C. incomplete dominance in a monohybrid cross D. incomplete dominance in a dihybrid cross ---------CORRECT ANSWER-- ---------------A Sickle-cell disease is a recessive genetic condition. Which genotype indicates that an individual has this disorder? A. AA B. Aa C. AB D. aa ---------CORRECT ANSWER-----------------D
B. regulating transport of water and minerals into vascular tissue. C. storing water, minerals, or nutrients for the plant. D. supporting the root structure of the plant. ---------CORRECT ANSWER--- --------------B Which of the following is a step in the sexual reproduction of plants? A. rhizome production B. spore production C. bulb production D. pollen production ---------CORRECT ANSWER-----------------D In human digestion, stomach enzymes and acids break proteins into A. vitamins. B. sugars. C. peptides. D. pepsin. ---------CORRECT ANSWER-----------------C Which of the following is part of the human endocrine system? A. pancreas B. larynx C. pharynx D. urethra ---------CORRECT ANSWER-----------------A Which kind of behavior is illustrated in chimpanzees by their ability to use tools? A. instinctive B. learned C. social D. territorial ---------CORRECT ANSWER-----------------B
Which of the following is part of the nitrogen cycle? A. Bacteria fix nitrogen from the air. B. Nitrogen is produced by respiration. C. Nitrogen is given off during photosynthesis. D. Green plants use atmospheric nitrogen for food. ---------CORRECT ANSWER-----------------A Using hydrogen fuel cells instead of gasoline engines in cars would cause a(an) A. decrease in carbon dioxide emission. B. increase in chloroflourocarbon emissions. C. increase in the amount of atmospheric ozone. D. decrease in radioactivity in the atmosphere. ---------CORRECT ANSWER-----------------A Which of the following is associated with a desert biome? A. deciduous plant life B. karst topography C. shade-tolerant plant life D. wind erosion ---------CORRECT ANSWER-----------------D Which of the following is most likely to cause a bad odor and surface scum on a natural pond? A. blue-green algae B. nitrogen-fixing bacteria C. yeast D. bracket fungi ---------CORRECT ANSWER-----------------A As a result of homeostasis, a marathon runner experiences which of the following physical effects as the body works to regulate its temperature? A. increasing blood pressure and motor reflexes B. increasing perspiration and breathing rates
