Download Science--March 2, 2015

MACC Science Questions
For Use on March 2, 2015
Please Read Aloud: All of the questions in this match are 5-second questions, unless otherwise
noted. Science questions that are problems will be read twice, with no repeats in the directed
rounds.
This is the first directed question for team A.
1A.
In flowering plants, the pistil usually consists of three basic parts. Name two of these three
parts. Begin (Two of the three must be given: stigma, style, and ovary)
This is the first directed question for team B.
1B.
The use of DNA probes and the development of retrieval techniques have made it possible
to match DNA molecules to one another for identification purposes. What is the specific
term for the use of these processes in forensic procedures? Begin (DNA fingerprinting)
This is the second directed question for team A. You have 20 seconds to answer this question.
2A.
A steel pipe weighing 240 grams will be replaced by one made of an aluminum alloy. The
specific gravity of this steel is 8. If the replacement aluminum alloy pipe weighs 90 grams,
what is the specific gravity of the aluminum alloy? (Read question again) Begin (3)
This is the second directed question for team B.
2B.
Identify the following as a heterogeneous mixture, solution, compound, or element: paper.
Begin (Heterogeneous mixture)
This is the third directed question for team A.
3A.
Which of the major types of mountains was formed when crust was pushed up by forces
within the Earth and over time the sedimentary rock on top was eroded, leaving behind
igneous and metamorphic rock beneath? Examples include the southern Rockies, the
Black Hills, and the Adirondacks. Begin (Upwarped mountains)
This is the third directed question for team B.
3B.
Fungus diseases that attack this potassium-rich tropical fruit include Panama and
Sigatoka. Name this fruit. Begin (The banana)
This is the fourth directed question for team A.
4A.
One mechanism of evolution is thought to occur when a small group of individuals leaves a
population and establishes a new one in a geographically isolated region. What is the
specific term for this mechanism? Begin (Genetic drift)
This is the fourth directed question for team B.
4B.
What is the name of the acid with the following formula: CH3COOH? Begin (Acetic acid)
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This is the fifth directed question for team A.
5A.
Libya's arid climate is made worse by the ghibli, a crop-destroying wind from what desert?
Begin (Sahara)
This is the fifth directed question for team B.
5B.
In flowering plants, the stamen usually consists of two basic parts. Name these two parts.
Begin (Both must be given: filament and anther)
This is the sixth directed question for team A.
6A.
Identify the following as a heterogeneous mixture, solution, compound, or element: milk.
Begin (Heterogeneous mixture)
This is the sixth directed question for team B.
6B.
One mechanism of evolution is thought to occur when migrations of individuals from one
group to another interbreed with the new population, contributing their genes to the gene
pool. What is the specific term for this mechanism? Begin (Gene flow)
This is the seventh directed question for team A.
7A.
An example of a plant that's a parasite is which one that’s hung from ceilings at
Christmas? Begin (Mistletoe)
This is the seventh directed question for team B.
7B.
A nucleus with an excess of neutrons is described as what, meaning it is spontaneously
emitting particles? Begin (Radioactive)
This is the eighth directed question for team A.
8A.
What is the specific term for the recombinant DNA process in which cells are taken from
the patient, altered by adding genetic material, and replaced in the patient? Begin (Gene
therapy)
This is the eighth directed question for team B. You have 20 seconds to answer this question.
8B.
A steel pipe weighing 400 grams will be replaced with one made of an aluminum alloy. The
specific gravity of this steel is 8, and the specific gravity of the alloy is 3. What is the
weight, in grams, of the new pipe? (Read question again) Begin (150)
This is the ninth directed question for team A.
9A.
It helps in studying neutrons if you slow them down from near light speed to 15 mph in a
block of what, also known as heavy hydrogen? Begin (Deuterium)
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This is the ninth directed question for team B.
9B.
Which of the major types of mountains was formed when huge tilted blocks of rocks were
separated from the surrounding rock by deep fissures in the earth? Examples include the
Grand Tetons and the Sierra Nevadas. Begin (Fault-block mountains)
This is the tenth and final directed question for team A.
10A.
What is the name of the acid with the following formula: H2C2O4? Begin (Oxalic acid)
This is the tenth and final directed question for team B.
10B.
What Hawaiian wind shares its four-letter name with a type of coffee? Begin (Kona)
That ends the portion of the match with directed questions. Coaches, if you have any team
member substitutions, please send those team members to the stage at this time. (Note:
Allow time for substitutes to be seated, introduce substitute team members.)
No form of conferring is allowed during the tossup portion of the match. Conferring includes
sharing of written or verbal information or signals. Please remove all written material
from your team tables. Writing is not permitted during tossup rounds, except in the math
round.
We will now have ten tossup questions. Remember, the person who buzzes in must give the
answer immediately. Please wait until I recognize the team before you give an answer. The
penalty for buzzing in early and giving a wrong answer is minus 2 points, and the question
will then be reread in its entirety to the other team.
This is the first tossup question.
1.
What subatomic particles come in six kinds and each kind comes in three “colors”? Begin
(Quarks)
This is the second tossup question.
2.
Those elements in Group 17 in the modern periodic table system, or group VIIA (seven - A)
in the traditional periodic table system, belong to which family? Begin (Halogens)
This is the third tossup question.
3.
They shared the Nobel Prize in 1962 for their proposed model for the structure of DNA.
Name these two famous scientists. Begin (Both must be given: James D. Watson and
Francis H. C. Crick)
This is the fourth tossup question.
4.
If there is a great difference between the dry bulb and wet bulb on a sling psychrometer,
what does this mean in terms of the relative humidity? Begin (It will be low)
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This is the fifth tossup question.
5.
What is the specific term for those types of bonds found between amino acids? Begin
(Peptide bonds)
This is the sixth tossup question.
6.
Once a stimulus is strong enough to initiate an action potential, it is said to have reached
what stage? Begin (Threshold)
This is the seventh tossup question.
7.
The Devil's Postpile National Monument in California is a prime example of this rock,
which is usually gray to black in color, contains augite, and sometimes exhibits properties
of magnetism. Name this type of fine-grained igneous extrusive rock. Begin (Basalt)
This is the eighth tossup question.
8.
In 1884 Robert Koch discovered that what waterborne disease was caused by a commashaped bacillus? Begin (Cholera)
This is the ninth tossup question.
9.
What is the most common state or phase of matter in the universe? Begin (Plasma)
This is the tenth and final tossup question.
(Emcee note – if match is tied after this question go to the three tie breakers at the end of these
questions – use all three, even if tie is broken on first or second question!)
10.
The troposphere is the dense lower part of the atmosphere in which clouds, storms, and
other weather phenomena occur. What is the specific term for that part which divides the
upper limit of the troposphere from the clear, cold air of the stratosphere? Begin
(Tropopause)
EMERGENCY QUESTIONS (To be used in an emergency only –DO NOT USE AS EXTRA TIE
BREAKERS – but they can be used in place of tie breakers as they would be used if a
question has a mistake, if the emcee “flubs” a question, etc.):
You have 5 seconds to answer this question.
1.
What name is given by astronomers to clumps of matter that evolve eventually into
planets? Begin (Protoplanets)
You have 5 seconds to answer this question.
2.
What power of ten is represented by the prefix “-micro”? Begin (10 -6 , ten to the negative
6)
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TIE BREAKERS (To be used in cases of tie games – use all three questions, even if the tie is
broken with the first or second question; in case teams are still tied at the end of these
three questions – the game remains a tie.):
This is the first tiebreaker question.
1.
What is the charge of the polyatomic phosphate ion? Begin (-3)
This is the second tiebreaker question.
2.
What is the more common name for the phylum Platyhelminthes? Begin (Flatworms)
This is the third tiebreaker question.
3.
Which igneous extrusive rock could be described as dark, glassy volcanic glass? Begin
(Obsidian)