SCIENCE 7TH-12TH PRACTICE TEST | TOP SCORES MADE
SIMPLE | TRUSTED TEST SOLUTIONS!
During an investigation of the periodic table trends, a student is asked to explain why
tellurium comes before iodine even though their atomic masses don't fit the trend in the
rest of the row of elements. The student responds that the atomic masses of tellurium
and Iodine must be incorrect. Of the following, which is the best first step toward
dispelling the student's misconception? Answer: Ask the student to compare the
isotopes of tellurium to isotopes of the other elements in its period.
Which of the following isotopes of chlorine has 16 neutrons in its nucleus? Answer:
33Cl
When light passes from air into glass, which of the following statements is true?
Answer: The angle of refraction will always be less than the angle of incidence.
Which statement below regarding water tables would be considered false? Answer:
Water tables are generally flat and underground.
Which of the following compounds is least soluble in water at 25 °C? Answer: C6H12
The valence electrons for an element have the following electron configuration:
4s23d7
In which of the following groups and periods of the periodic table would this element
most likely be found? Answer: period 4; group 9
Many cities are implementing or expanding pre-existing recycling programs to include a
wider variety of plastics. Companies are researching ways to reduce the amount of
plastic used in packaging and make it easier to recycle. Which of the following societal
issues is most directly addressed by the new developments and research in these
fields? Answer: the increased volume of garbage in landfills
Which of the following parts of a coal-fired power plant converts kinetic energy into
electrical energy? Answer: generator
A teacher is considering several ways to teach the interdependence of organisms within
an ecosystem. Which of the following choices is the best option for this course of study
to maximize building critical thinking and inquiry skills? Answer: The teacher provides
students with soft drink bottles, soil, water, compost, and fruit flies. The students will
design and build an experiment to test their own hypotheses.
What does the map indicate about the plate tectonics of the region? Answer: The
locations of the volcanoes indicates a convergent plate boundary.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Which of the following describes a process that takes place when a person's body
temperature falls below its normal range? Answer: Muscle contractions near the skin
will release heat as they use up ATP.
In order to teach students about the relationships between predation and the inherited
characteristics that facilitate predator-prey relationships, an instructor could develop a
matching game in which various habitats can be associated with which of the following?
Answer: camoflauge
As reproductive technology has advanced, many ethical dilemmas have arisen. Which
of the following presents the fewest ethical challenges?
undergoing assisted reproductive technology in order to choose: Answer: an embryo
that does not carry cystic fibrosis
The planets in our solar system may have formed by accretion. Which of the following
best describes the process of accretion for planetary body formation? Answer: planets
are built up as particles collide and stick together
An ideal transformer consists of two completely separate windings of wire wrapped
around a laminated iron core. One winding has 500 loops of wire and connects to a
120-V power supply. The other winding has 125 loops and connects to an electronic
device. Which of the following correctly describes what the transformer delivers to the
electronic device, compared with what is delivered by the 120-V power supply?
Answer: more current
A man and a woman have no symptoms of cystic fibrosis. Their first child is diagnosed
with the disease. The child's cystic fibrosis most likely results from which of the
following? Answer: Both parents carry a recessive allele for the cystic fibrosis gene.
Which of the following would not be part of the process of an angular unconformity?
Answer: metamorphism
Which of the following is the missing reactant X in the equation below?
238U + X ⟶ 239U Answer: 1n
As the cell grows larger in size, which of the following does not happen? Answer: The
ratio of surface area to volume of the cell increases.
Plant leaves are composed of many smaller components. Xylem carries water, phloem
carries food, and the leaf is covered in a waxy, protective epidermis. What is the
structural level of organization of a plant leaf? Answer: organ
A remote-controlled toy boat vibrates on the surface of a ripple tank and is the source of
waves. The waves have a frequency of 30 Hz and a speed of 60 cm/s. If the toy boat,
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
SIMPLE | TRUSTED TEST SOLUTIONS!
During an investigation of the periodic table trends, a student is asked to explain why
tellurium comes before iodine even though their atomic masses don't fit the trend in the
rest of the row of elements. The student responds that the atomic masses of tellurium
and Iodine must be incorrect. Of the following, which is the best first step toward
dispelling the student's misconception? Answer: Ask the student to compare the
isotopes of tellurium to isotopes of the other elements in its period.
Which of the following isotopes of chlorine has 16 neutrons in its nucleus? Answer:
33Cl
When light passes from air into glass, which of the following statements is true?
Answer: The angle of refraction will always be less than the angle of incidence.
Which statement below regarding water tables would be considered false? Answer:
Water tables are generally flat and underground.
Which of the following compounds is least soluble in water at 25 °C? Answer: C6H12
The valence electrons for an element have the following electron configuration:
4s23d7
In which of the following groups and periods of the periodic table would this element
most likely be found? Answer: period 4; group 9
Many cities are implementing or expanding pre-existing recycling programs to include a
wider variety of plastics. Companies are researching ways to reduce the amount of
plastic used in packaging and make it easier to recycle. Which of the following societal
issues is most directly addressed by the new developments and research in these
fields? Answer: the increased volume of garbage in landfills
Which of the following parts of a coal-fired power plant converts kinetic energy into
electrical energy? Answer: generator
A teacher is considering several ways to teach the interdependence of organisms within
an ecosystem. Which of the following choices is the best option for this course of study
to maximize building critical thinking and inquiry skills? Answer: The teacher provides
students with soft drink bottles, soil, water, compost, and fruit flies. The students will
design and build an experiment to test their own hypotheses.
What does the map indicate about the plate tectonics of the region? Answer: The
locations of the volcanoes indicates a convergent plate boundary.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Which of the following describes a process that takes place when a person's body
temperature falls below its normal range? Answer: Muscle contractions near the skin
will release heat as they use up ATP.
In order to teach students about the relationships between predation and the inherited
characteristics that facilitate predator-prey relationships, an instructor could develop a
matching game in which various habitats can be associated with which of the following?
Answer: camoflauge
As reproductive technology has advanced, many ethical dilemmas have arisen. Which
of the following presents the fewest ethical challenges?
undergoing assisted reproductive technology in order to choose: Answer: an embryo
that does not carry cystic fibrosis
The planets in our solar system may have formed by accretion. Which of the following
best describes the process of accretion for planetary body formation? Answer: planets
are built up as particles collide and stick together
An ideal transformer consists of two completely separate windings of wire wrapped
around a laminated iron core. One winding has 500 loops of wire and connects to a
120-V power supply. The other winding has 125 loops and connects to an electronic
device. Which of the following correctly describes what the transformer delivers to the
electronic device, compared with what is delivered by the 120-V power supply?
Answer: more current
A man and a woman have no symptoms of cystic fibrosis. Their first child is diagnosed
with the disease. The child's cystic fibrosis most likely results from which of the
following? Answer: Both parents carry a recessive allele for the cystic fibrosis gene.
Which of the following would not be part of the process of an angular unconformity?
Answer: metamorphism
Which of the following is the missing reactant X in the equation below?
238U + X ⟶ 239U Answer: 1n
As the cell grows larger in size, which of the following does not happen? Answer: The
ratio of surface area to volume of the cell increases.
Plant leaves are composed of many smaller components. Xylem carries water, phloem
carries food, and the leaf is covered in a waxy, protective epidermis. What is the
structural level of organization of a plant leaf? Answer: organ
A remote-controlled toy boat vibrates on the surface of a ripple tank and is the source of
waves. The waves have a frequency of 30 Hz and a speed of 60 cm/s. If the toy boat,
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
