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Science bowl middle school set 1 round 1
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Terms in this set (50)
What organelle functions to isolate a human cell's chromosomes from the cytoplasm?
nucleus
What is the primary oxygen-carrying protein found in red blood cells?
hemoglobin
What physical state of matter is intermediate between a solid and gas?
liquid
Which of the following BEST describes the term static:
W) stationary X) low
Y) constant Z) used
W) STATIONARY
What is the general name for the rising and falling of sea levels in response to the forces exerted by the Moon and Sun?
tides
Approximately what fraction of Earth's surface is covered by oceans:
W) one-half
X) two-thirds Y) seven-tenths Z) four-fifths
Y) SEVEN-TENTHS
How many degrees are in one-third of a right angle
30
Round the number 535,279 to the nearest ten-thousand
540,000
The number 4.56 × 10^11 has how many zeroes?
9
Giving your answer in grams, subtract 200 grams from 6.2 kilograms
6000
How many permanent teeth does a typical adult human have?
32
How many canine teeth does the typical human adult have?
4
Mary tried to lift her couch by exerting 500 newtons of force but it doesn't budge. If the couch weighed 2,000 newtons, how much work did she do?
0
Jeff walks west in a straight path for 100 meters and then east in a straight path for 150 meters. What is the magnitude of his displacement, in meters?
50
The hydrologic cycle describes the circulation of Earth's:
W) tides X) water
Y) sediments Z) rocks
X) WATER
What is the name of the rock that makes up most of the ocean floor and volcanic ocean islands?
basalt
In a right triangle, what is the name for the side opposite the 90^o angle?
hypotenuse
Rounded to the nearest meter, find the length of the hypotenuse of a right triangle if the legs measure 5 and 12 meters?
13
What is the SI base unit for length?
meter
Name all of the following 3 choices that are measurements units for speed: mach; newton; knots
mach and knots
Most of the heart is composed of which of the following types of tissues:
W) epithelial X) connective Y) nervous Z) muscle
Z) MUSCLE
In the taxonomical name Homo sapiens, what taxonomical rank
does sapiens represent?
species
What atomic particle balances the charge of protons to produce a neutral atom?
electron
Isotopes of the same element are based on their different numbers of what atomic particle?
neutrons
Which of the Gas giant planets is closest to the Sun?
Jupiter
What are the 2 main factors causing the metamorphism of rocks?
HEAT AND PRESSURE
What is the name for any segment with one endpoint at the center of a circle and the other endpoint on the circle?
radius
Rounded to the nearest ten-thousandth, convert 1/3 to a decimal
.3333
If there are 640 ounces of water in 5 gallons, how many ounces are in 1⁄2 gallon?
64
Name all of the following 4 choices that are measurement units of area: meter; hectare; acre; mile
HECTARE; ACRE
What is generally considered the basic unit of life?
CELL
In what organelle of a plant cell does photosynthesis occur?
CHLOROPLAST
An ionic state of an atom of hydrogen would have how many protons?
1
What is the name for the biochemical process that converts grape juice into wine or soy beans into soy sauce?
FERMENTATION
Giving your answer as north, south, east, or west, a southerly wind blows FROM what direction?
SOUTH
Which of the following clouds has little vertical development:
W) altostratus X) altocumulus Y) cirrus
Z) nimbostratus
Y) CIRRUS
What is the exact circumference, in centimeters, of a circle whose radius is 3 centimeters?
6π
Change each of the following 3 fractions, respectively, to equivalent fractions with a denominator of 30: 1/3 3/5 5/6
10/30 18/30 25/30
What is the common name for the antiseptic, found in many homes, that decomposes into water and oxygen?
HYDROGEN PEROXIDE
What is the chemical formula for hydrogen peroxide?
H2O2
What is the scientific name for the white of a cooked egg?
ALBUMEN
What term is generally used for biological catalysts?
ENZYMES
What term do scientists use for the force of gravity acting on anything that has mass?
WEIGHT
How many protons are present in a single helium nucleus?
2
A weather forecast of 100% relative humidity suggests an increased possibility of:
W) rain
X) wind
Y) rising temperature Z) drying conditions
W) RAIN
What is the name for all Great Circles that pass through the north and south poles?
LONGITUDES
Every triangle has how many vertices?
3
If the perimeter of a triangle is 45 centimeters and the lengths of two of its sides are 16 and 12 centimeters, find the length of the third side, in centimeters:
17
What general term describes the angle or degree north or south of the equator?
LATITUDE
The geographic north pole is at what latitude?
90
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