Middle School Round 4 Math and Science Review, Assignments of Earth Sciences

Download Middle School Round 4 Math and Science Review and more Assignments Earth Sciences in PDF only on Docsity! Middle School Round 4 Page 1 ROUND 4 TOSS-UP 1) MATH Multiple Choice Which of the following is NOT true: W) an irrational number is one that cannot be expressed as the ratio of integers X) fractions equal to 1 are called mixed fractions Y) the numerator is less than the denominator in a proper fraction Z) a composite number is a positive integer greater than 1 that is not prime ANSWER: X) FRACTIONS EQUAL TO 1 ARE CALLED MIXED FRACTIONS BONUS 1) MATH Short Answer Reduce the following fraction to a mixed fraction in lowest terms: 25 290 ANSWER: 11 5 3 TOSS-UP 2) GENERAL SCIENCE Short Answer Rounded to the nearest whole number, what is the specific gravity of water at standard temperature and pressure? ANSWER: 1 BONUS 2) GENERAL SCIENCE Short Answer Arrange the following 4 choices in order of INCREASING speed of computer data transmission: 1 gigabyte per second; 1 kilobyte per second; 1 megabyte per second; 1 terabyte per second ANSWER: 1 KILOBYTE PER SECOND; 1 MEGABYTE PER SECOND; 1 GIGABYTE PER SECOND; 1 TERABYTE PER SECOND Middle School Round 4 Page 2 TOSS-UP 3) LIFE SCIENCE Multiple Choice In which of the following places would meiosis most likely occur in a mammal: W) skin X) liver Y) heart Z) ovary ANSWER: Z) OVARY BONUS 3) LIFE SCIENCE Short Answer What are the most common names of the gametes produced by a human male and female, respectively? ANSWER: MALE = SPERM; FEMALE = EGG (ACCEPT: SPERM AND OVUM) TOSS-UP 4) PHYSICAL SCIENCE Short Answer An empty plastic soda bottle is closed tightly at an elevation of 10,000 feet elevation and brought back to sea level. What is the visible condition of the bottle? ANSWER: IT IS CRUSHED (ACCEPT: COLLAPSED OR ANY OTHER REASONABLE SYNONYM) BONUS 4) PHYSICAL SCIENCE Short Answer Name all of the following 3 choices that are physical properties of an object: length; mass; density ANSWER: ALL Middle School Round 4 Page 5 TOSS-UP 9) PHYSICAL SCIENCE Short Answer A screw driver and a doorknob are considered variations of what simple machine? ANSWER: WHEEL AND AXLE BONUS 9) PHYSICAL SCIENCE Short Answer Consider a lever with an ideal mechanical advantage of 8. What will its mechanical advantage be if the effort arm length is reduced by ½? ANSWER: 4 TOSS-UP 10) EARTH SCIENCE Multiple Choice Bioluminescence in marine organisms is important for all but which of the following functions: W) attracting prey X) communicating with other organisms Y) illumination Z) buoyancy ANSWER: Z) BUOYANCY BONUS 10) EARTH SCIENCE Multiple Choice Magmas that crystallize beneath the Earth’s surface form intrusive bodies of igneous rock that are generally known as: W) pumice X) plutons Y) tuffs Z) breccia ANSWER: X) PLUTONS Middle School Round 4 Page 6 TOSS-UP 11) MATH Short Answer Convert 0.000328 × 10–6 into proper scientific notation: ANSWER: 3.28 × 10–10 BONUS 11) MATH Short Answer How many numbers from 1 through 30 are multiples of 3? ANSWER: 10 TOSS-UP 12) GENERAL SCIENCE Short Answer Whereas mass is measured in kilograms, what SI unit is the most common measure of an object’s weight? ANSWER: NEWTON(S) BONUS 12) GENERAL SCIENCE Multiple Choice On the earth’s surface, which of the following is CLOSEST to the mass of 1,000 pounds: W) 454 kilograms X) 2,200 kilograms Y) 1 ton Z) 1 kiloton ANSWER: W) 454 KILOGRAMS Middle School Round 4 Page 7 TOSS-UP 13) LIFE SCIENCE Multiple Choice Most biological catalysts are: W) proteins X) vitamins Y) carbohydrates Z) lipids ANSWER: W) PROTEINS BONUS 13) LIFE SCIENCE Multiple Choice Which of the following best describes a bacteriophage: W) a bacterial virus X) a stage in the development of most bacteria Y) the release of disease-causing bacteria from a host organism Z) a very small bacteria ANSWER: W) A BACTERIAL VIRUS TOSS-UP 14) PHYSICAL SCIENCE Multiple Choice Which of the following will occur when an unbalanced force acts on an object: W) the object will stop X) the object will lose heat Y) the object will accelerate Z) the object will melt ANSWER: Y) THE OBJECT WILL ACCELERATE BONUS 14) PHYSICAL SCIENCE Short Answer What is the average acceleration, in kilometers per hour per second to the first decimal place, of a bird flying in a straight path from 0 to 50 kilometers per hour in 4 minutes and 10.0 seconds? ANSWER: 0.2 (Solution: 50/250 = 0.2 km/hr/sec) Middle School Round 4 Page 10 TOSS-UP 19) PHYSICAL SCIENCE Short Answer The exchange or sharing of what atomic particle is most directly involved in chemical bonding? ANSWER: ELECTRONS BONUS 19) PHYSICAL SCIENCE Short Answer How many valence electrons are in an oxygen atom, which resides in group 16 or 6A of the Periodic Table? ANSWER: 6 TOSS-UP 20) EARTH SCIENCE Multiple Choice Which of the following would be used on a weather map to indicate a cold day in winter with clear, blue skies: W) capital L X) capital H Y) green shaded areas Z) pink shaded areas ANSWER: X) CAPITAL H BONUS 20) EARTH SCIENCE Short Answer What is the name for the northern-most latitude where the Sun can appear directly overhead? ANSWER: THE TROPIC OF CANCER (ACCEPT: NORTHERN TROPIC) Middle School Round 4 Page 11 TOSS-UP 21) MATH Short Answer Simplify the following expression by using the Distributive Property: –3(2x – 6y + 3) ANSWER: –6x + 18y – 9 (ACCEPT: 18y – 6x – 9) BONUS 21) MATH Short Answer If exterior angles at two of the vertices of a triangle are 70º and 145º, what is the measure of an exterior angle at the third vertex, in degrees? ANSWER: 145 TOSS-UP 22) GENERAL SCIENCE Short Answer What is the astronomical term for the bright trail of a meteoroid passing through the atmosphere of the Earth? ANSWER: METEOR BONUS 22) GENERAL SCIENCE Multiple Choice Which of the following foods contains the MOST calories: W) 1, twelve-ounce non-diet soda X) 1 tablespoon catsup Y) 1 8-ounce fresh orange Z) 1 tablespoon white, granulated sugar ANSWER: W) 1, TWELVE-OUNCE NON-DIET SODA Middle School Round 4 Page 12 TOSS-UP 23) LIFE SCIENCE Short Answer How many pairs of walking legs do spiders have? ANSWER: 4 BONUS 23) LIFE SCIENCE Short Answer Name all of the following 4 organisms that are bivalves: squid; clams; snails; mussels ANSWER: CLAMS; MUSSELS TOSS-UP 24) PHYSICAL SCIENCE Short Answer Consider a yo-yo swinging on the end of a string in uniform circular motion. What is the most accurate term for the center-seeking force exerted on the yo-yo through the string? ANSWER: CENTRIPETAL BONUS 24) PHYSICAL SCIENCE Short Answer What are the four basic forces of the universe? ANSWER: GRAVITY; ELECTROMAGNETISM; STRONG (FORCE); WEAK (FORCE) (ACCEPT: GRAVITATION or GRAVITATIONAL FOR GRAVITY)