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Elementary Exam Science Praxis II Quiz 3
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1. The world’s first artificial satellite was launched by:
a. The United States in 1955.
b. The Soviet Union in 1957.
c. China in 1958.
d. France in 1960.
2. Where would the Ocean Pelagic Zone be found?
a. In the deep sea trenches.
b. High on the Inter-Tidal Zone.
c. In open water not near the bottom.
d. Mid-level ocean areas.
3. The existence of life on other planets has not yet been proven; however, the idea will become more scientifically acceptable if which of the following occurs?
a. no scientist argues against the idea
b. the idea is fully studied
c. the idea is disproved
d. more scientific evidence appears that supports the idea
4. Nathan pulls a lighter out of his pocket during a chemistry lab and lights it. As a teacher, what is the best action for you to take?
a. Ask him why he has a lighter in chemistry lab, and ask him to put it away.
b. Tell him that he does not need a lighter in chemistry lab today, so he can put it away.
c. Take the lighter away from him, and send the him out of the classroom to the proper disciplinary authority.
d. Tell Nathan that a lit lighter is inappropriate and dangerous, and that he should let you keep it during class.
5. What electrical part do the two symbols stand for?
a. Resistor.
b. Transistor.
c. Coil.
d. Capacitor.
6. A grassland area in Africa gets just enough water to sustain grass, but not trees. It is located between a desert and a forest. What is the correct biological term for that type of ecosystem?
a. A savanna.
b. An ecological niche.
c. A biome.
d. An oasis.
7. In addition to the solar radiation that warms the surface of Venus, there are also thick clouds in the planet’s atmosphere. Which of the following best explains how the clouds increase the surface temperature?
a. The cloud cover prevents the escape of heat into space
b. The cloud cover converts solar radiation into heat
c. The cloud cover absorbs short light wavelengths, leaving heat
d. The cloud cover produces heat as it is pushed along by strong winds
8. What does the illustrated symbol mean?
a. Standard deviation.
b. Sigma deviation.
c. Data average.
d. Sum of.
9. What is inertia ?
a. It is the force of impact in a collision.
b. It is the force of an object moving downhill less the force of friction.
c. It is the force in F=ma.
d. It is the tendency of a moving object to resist acceleration.
10. The theory that states that geological change on Earth has all been a slowly incremental process that has taken place over long periods of time is called which of the following?
a. Catastrophism.
b. Web's Theorem.
c. Velikovsky's Theory.
d. Uniformitarianism.
11. When planets stop and move in the opposite direction in the sky the motion is called which of the following?
a. Retrograde motion.
b. Prograde motion.
c. Direct motion.
d. Parallax motion shift.
12. What is one structure that is not found in animal cells?
a. Organelles.
b. Cell wall.
c. Mitochondria.
d. Endoplasmic reticulum.
13. The Precambrian Period came after which of the following geological time periods?
a. Cambrian.
b. No time period existed before the Precambrian. It was the first.
c. Cenozoic.
d. Phanerozoic.
14. The work needed to accelerate a body of a given mass from rest to its current velocity is what kind of energy?
a. thermal
b. gravitational
c. kinetic
d. chemical
15. The process of photosynthesis creates which of the following end-products?
a. water
b. carbon dioxide
c. carbon monoxide
d. oxygen
16. Markie analyzed two liquid compounds and determined that they were both the same chemical. She based this on the fact that both compounds were the same color. Her teacher told her that she was wrong. Based on your knowledge of matter, where did Markie go wrong?
a. Color differences between different compounds can be very slight, and are not easily noticeable. She may have missed the difference.
b. The chemical glassware may have been dirty, and may have obscured any difference in color. She may have missed this.
c. She only looked at a one compound property, and one cannot make a determination from only one compound property.
d. She forgot to verify whether the samples were the same dilutions. Different dilutions may change the color, which could have led to her mistake.
17. All of the following statements about the duodenum (labeled # 6 in the above diagram) are true
EXCEPT: a. The duodenum is a hollow jointed tube that connects the stomach to the jejunum
b. The duodenum is the last and longest part of the large intestine
c. The duodenum is the location of the majority of chemical digestion
d. The duodenum is the first and shortest part of the small intestine
18. Mass times acceleration is equal to force. Mass times velocity is equal to which of the following?
a. Momentum.
b. Work.
c. Power.
d. Inertia.
19. An example of a carbohydrate in chemistry is which of the following?
a. An organic alkene.
b. A lipid.
c. An amino acid.
d. Cellulose.
20. An organ is to a body as which of the following is to a cell?
a. Ribosome.
b. Organelle.
c. Nucleus.
d. Golgi body.
21. Many ancient civilizations named certain patterns and constellations of stars. However, planets were not included in these designated patterns. Which of the following explains why this is the case?
a. Planets are more difficult to see than stars
b. There are too few planets to form a constellation
c. Planets appear to be larger than stars
d. Planets do not maintain fixed positions relative to other planets or stars
22. What do you call a molecule that is made up of one halogen atom, and one light earth metal atom?
a. A polypeptide.
b. A covalent bond compound.
c. An ionic salt.
d. A hydrogen-bonded micro molecule.
23. After birth, the body is most limited in forming new
a. nerve cells
b. blood cells
c. skin cells
d. stomach cells
24. The lower portion of the brain stem is called the
a. cerebellum
b. cerebrum
c. medulla oblongata
d. cortex
The equation above is:
Used to calculate the number of civilizations in our galaxy.
N represents the number of civilizations in our galaxy in which communication might be possible; and R* is the average rate of star formation per year in our galaxy;
fp refers to the fraction of those stars that have planets;
ne is the average number of planets that can potentially support life per star with planets;
f? is the fraction of the equation above that actually develops life at some point;
fi is the fraction of the equation above that actually develops intelligent life;
fc is the fraction of civilizations that develops a technology that releases detectable signs of their existence into space; and
L is the length of time that such civilizations release detectable signals into space.
25. Which of the following is the name of the equation above?
a. The Parnell Equation.
b. The Sagan Equation.
c. The Drake Equation.
d. The Thomson Equation.
26. During a solar eclipse
a. the Earth prevents the light of the Sun from reaching the Moon
b. the shadow of the Moon falls on the Sun
c. the Moon prevents the light of the Sun from reaching the Earth
d. the Sun prevents the reflected Moonlight from reaching the Earth
27. What property determines an element's bonding properties the most?
a. Number of electrons.
b. Number of valence electrons.
c. Number of neutrons.
d. What column is it listed on in the Periodic Table of Elements?
28. Which eight elements make up 98% of the Earth's crust?
a. O, Si, Al, Fe, Ca, Na, K, and Mg.
b. K, Ne, S, C, Ca, O, Fe, and H.
c. Ag, Au, Fe, I, N, He, O, and S.
d. C, S, N, O, Fe, Si, Ca, and Mg.
29. Cellular respiration converts oxygen and simple sugars to energy which is then stored in the cell. What is the primary energy currency of the cell?
a. DNA.
b. Lipids.
c. Amino acids.
d. ATP.
30. A minor planet, or planetoid, can also be called a(n)
a. moon
b. comet
c. meteor
d. asteroid
31. What force works in opposition to the freesliding of an object down an incline plane?
a. Gravity.
b. Centrifugal force.
c. Friction.
d. Coriolis Force.
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