Science Praxis 5511; Questions & Answers (A+)
Which of the following is NOT true about Louis Pasteur?
A. He made the first rabies vaccine
B. He discovered the medical use for penicillin
C. His experiments advanced the germ theory of disease
D. He created the first polio vaccine Answer-D. He created the first polio vaccine
Which of the following materials has randomly aligned dipoles?
A. a non-magnetic substance
B. an electromagnet
C. a permanent magnet
D. a horseshoe magnet Answer-A. a non-magnetic substance
Once a hypothesis has been verified and accepted, it becomes which of the following?
A. a fact
B. a law
C. a conclusion
D. a theory Answer-D. a theory
How does the tilt of the Earth's axis affect the seasons?
A. a hemisphere experiences fall and winter when that half of Earth is tilted away from the sun.
It experiences spring and summer when that half of Earth is tilted toward the sun.
,Science Praxis 5511; Questions & Answers (A+)
B. A hemisphere experiences winter and spring when that half of Earth is tilted away from the
sun. It experiences summer and fall when that half of Earth is tilted toward the sun.
C. A hemisphere experiences spring and summer when that half of Earth is tilted away from the
sun. It experiences fall and winter when that half of Earth is tilted toward the sun.
D. A hemisphere experiences summer and fall when that half of Earth is tilted away from the
sun. It experiences winter and spring when that half of Earth is tilted toward the sun.
Answer-A. a hemisphere experiences fall and winter when that half of Earth is tilted away
from the sun. It experiences spring and summer when that half of Earth is tilted toward the sun.
If a population reaches a maximum size and ceases to grow due to a limited availability of
resources, which of the following describes the population?
A. unstable
B. shrinking exponentially
C. at carrying capacity
D. moving towards extinction Answer-C. at carrying capacity
The center of an atom is called ____. It is composed of _______.
A. nucleus; proton and neutrons
B. nucleus; protons and electrons
C. electron cloud; electrons and protons
D. electron cloud; electrons and neutrons Answer-A. nucleus; proton and neutrons
Of the following insects, which undergo a complete metamorphosis during their life cycle?
, Science Praxis 5511; Questions & Answers (A+)
A. mosquitoes
B. butterflies
C. dragonflies
D. grasshoppers Answer-B. butterflies
Most organic molecules have all the following properties EXCEPT:
A. high solubility in water
B. a tendency to melt
C. covalent bonds
D. high flammability Answer-A. high solubility in water
Which of the following processes is NOT part of the formation of sedimentary rock?
A. layering
B. cementation
C. compaction
D. heat Answer-D. heat
Which of the following is usually the first form of study in a new area of scientific inquiry?
A. descriptive studies
B. controlled experiments
C. choosing a method and design
Which of the following is NOT true about Louis Pasteur?
A. He made the first rabies vaccine
B. He discovered the medical use for penicillin
C. His experiments advanced the germ theory of disease
D. He created the first polio vaccine Answer-D. He created the first polio vaccine
Which of the following materials has randomly aligned dipoles?
A. a non-magnetic substance
B. an electromagnet
C. a permanent magnet
D. a horseshoe magnet Answer-A. a non-magnetic substance
Once a hypothesis has been verified and accepted, it becomes which of the following?
A. a fact
B. a law
C. a conclusion
D. a theory Answer-D. a theory
How does the tilt of the Earth's axis affect the seasons?
A. a hemisphere experiences fall and winter when that half of Earth is tilted away from the sun.
It experiences spring and summer when that half of Earth is tilted toward the sun.
,Science Praxis 5511; Questions & Answers (A+)
B. A hemisphere experiences winter and spring when that half of Earth is tilted away from the
sun. It experiences summer and fall when that half of Earth is tilted toward the sun.
C. A hemisphere experiences spring and summer when that half of Earth is tilted away from the
sun. It experiences fall and winter when that half of Earth is tilted toward the sun.
D. A hemisphere experiences summer and fall when that half of Earth is tilted away from the
sun. It experiences winter and spring when that half of Earth is tilted toward the sun.
Answer-A. a hemisphere experiences fall and winter when that half of Earth is tilted away
from the sun. It experiences spring and summer when that half of Earth is tilted toward the sun.
If a population reaches a maximum size and ceases to grow due to a limited availability of
resources, which of the following describes the population?
A. unstable
B. shrinking exponentially
C. at carrying capacity
D. moving towards extinction Answer-C. at carrying capacity
The center of an atom is called ____. It is composed of _______.
A. nucleus; proton and neutrons
B. nucleus; protons and electrons
C. electron cloud; electrons and protons
D. electron cloud; electrons and neutrons Answer-A. nucleus; proton and neutrons
Of the following insects, which undergo a complete metamorphosis during their life cycle?
, Science Praxis 5511; Questions & Answers (A+)
A. mosquitoes
B. butterflies
C. dragonflies
D. grasshoppers Answer-B. butterflies
Most organic molecules have all the following properties EXCEPT:
A. high solubility in water
B. a tendency to melt
C. covalent bonds
D. high flammability Answer-A. high solubility in water
Which of the following processes is NOT part of the formation of sedimentary rock?
A. layering
B. cementation
C. compaction
D. heat Answer-D. heat
Which of the following is usually the first form of study in a new area of scientific inquiry?
A. descriptive studies
B. controlled experiments
C. choosing a method and design
