SCIENCE 7-12 CONTENT EXAM PREP | TOP SCORES MADE
SIMPLE | TRUSTED TEST SOLUTIONS!
Be sure to read all fire alarm and safety signs and follow the instructions in the event of
an accident or emergency Answer: Proper Use of Laboratory Facilities
Everyone should be fully aware of the facility's evacuation procedures Answer: Proper
Use of Laboratory Facilities
Injuries, accidents, and broken equipment or glass do not have to be reported right
away, given that the incident is small or unimportant Answer: Improper Use of
Laboratory Facilities
Ongoing laboratory experiments should not be left unattended Answer: Proper Use of
Laboratory Facilities
Laboratory glassware is safe to use as food or beverage containers after being
thoroughly cleansed Answer: Improper Use of Laboratory Facilities
If an instrument or piece of equipment fails during use, or is not operating properly,
report the issue to a technician right away Answer: Proper Use of Laboratory Facilities
Everyone should know where the laboratory's safety equipment—including first aid
kit(s), fire extinguishers, eye wash stations, and safety showers—is located and how to
properly use it Answer: Proper Use of Laboratory Facilities
Sarah looked at some pond water with a microscope. She used the low-power objective
lens to look at some green algae. The picture below shows what Sarah saw through the
microscope.
What is the role of the pond organisms that Sarah saw in her field of view Answer:
producer
If Sarah switched the lens from low power to high power, what would she see in the field
of view Answer: Fewer cells than with the low-power view, but in greater detail.
Students in Mr. Solis' class want to determine if mealworms prefer to eat slices of
potatoes or slices of apple. The design of this experiment should include all of the
following except Answer: introduce another type of insect to see if the feeding patterns
are the same
1
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, Sixth-grade students in Ms. Chung's class are working in small groups to replicate
erosion of soil by the movement of water. Each group is given a small tray with a hole in
the bottom of one end, a container of soil, a container of fresh water, and a bucket to
catch the waste water. The students were instructed to place 2" of soil in the tray. They
then placed one end of the tray on the blocks and poured the water as shown in the
diagram. Their task was to measure the amount of soil collected at the bottom of the
tray. Each group was asked to post the results on a class chart. The results of the
experiment showed a great amount of variance between groups in the quantity of soil
collected at the bottom of the tray
Which of the following best explains the differences between the groups in the amount
of soil collected at the bottom of the tray in this experiment? Answer: Because the
directions did not specify the volume of water or the rate in which the students were to
pour the water, the variance in the force of the water between groups most likely caused
the difference in the results.
If a person would win $5 if she pulled an ace from a deck of 52 cards, the Expected
Monetary Value (EMV) of the pull would be — Answer: .38 (38 cents). Here, EMV (Ace)
= P(Ace) × Monetary Value(Ace) = 4/52 × 5 = 0.38. Therefore, A is the correct answer.
Click on evidence in the passage below that supports the fact that science is a human
endeavor influenced by societal, cultural and personal views of the world as well as
personal and societal needs Answer: This is why it is essential for all types of people
around the world from many different communities to become scientists. This ensures
that science and technology responds to their interests and needs and to be sure that
there are diverse ideas to enrich explanations and arguments
Click on evidence in the following passage that encompasses the central reason why
scientific ethics must be considered in any scientific investigation. Answer: Today, it is
necessary to conduct ethical discussions in order to adapt the use of scientific
knowledge to a general context that is in agreement with the basic principles of our
civilization. Scientists should be concerned about the use of scientific knowledge and
they should address the ensuing ethical questions, both in general terms and in terms of
their own work.
In a drill during basketball practice, a player runs the length of the 30.-meter court and
back. The player does this three times in 60. seconds.
The average speed of the player during the drill is Answer: 3.0 m/s v = d/t
An object accelerates uniformly from 3.0 meters per second east to 8.0 meters per
second east in 2.0 seconds. What is the magnitude of the acceleration of the object
Answer: 2.5 m/s^2
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
SIMPLE | TRUSTED TEST SOLUTIONS!
Be sure to read all fire alarm and safety signs and follow the instructions in the event of
an accident or emergency Answer: Proper Use of Laboratory Facilities
Everyone should be fully aware of the facility's evacuation procedures Answer: Proper
Use of Laboratory Facilities
Injuries, accidents, and broken equipment or glass do not have to be reported right
away, given that the incident is small or unimportant Answer: Improper Use of
Laboratory Facilities
Ongoing laboratory experiments should not be left unattended Answer: Proper Use of
Laboratory Facilities
Laboratory glassware is safe to use as food or beverage containers after being
thoroughly cleansed Answer: Improper Use of Laboratory Facilities
If an instrument or piece of equipment fails during use, or is not operating properly,
report the issue to a technician right away Answer: Proper Use of Laboratory Facilities
Everyone should know where the laboratory's safety equipment—including first aid
kit(s), fire extinguishers, eye wash stations, and safety showers—is located and how to
properly use it Answer: Proper Use of Laboratory Facilities
Sarah looked at some pond water with a microscope. She used the low-power objective
lens to look at some green algae. The picture below shows what Sarah saw through the
microscope.
What is the role of the pond organisms that Sarah saw in her field of view Answer:
producer
If Sarah switched the lens from low power to high power, what would she see in the field
of view Answer: Fewer cells than with the low-power view, but in greater detail.
Students in Mr. Solis' class want to determine if mealworms prefer to eat slices of
potatoes or slices of apple. The design of this experiment should include all of the
following except Answer: introduce another type of insect to see if the feeding patterns
are the same
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Sixth-grade students in Ms. Chung's class are working in small groups to replicate
erosion of soil by the movement of water. Each group is given a small tray with a hole in
the bottom of one end, a container of soil, a container of fresh water, and a bucket to
catch the waste water. The students were instructed to place 2" of soil in the tray. They
then placed one end of the tray on the blocks and poured the water as shown in the
diagram. Their task was to measure the amount of soil collected at the bottom of the
tray. Each group was asked to post the results on a class chart. The results of the
experiment showed a great amount of variance between groups in the quantity of soil
collected at the bottom of the tray
Which of the following best explains the differences between the groups in the amount
of soil collected at the bottom of the tray in this experiment? Answer: Because the
directions did not specify the volume of water or the rate in which the students were to
pour the water, the variance in the force of the water between groups most likely caused
the difference in the results.
If a person would win $5 if she pulled an ace from a deck of 52 cards, the Expected
Monetary Value (EMV) of the pull would be — Answer: .38 (38 cents). Here, EMV (Ace)
= P(Ace) × Monetary Value(Ace) = 4/52 × 5 = 0.38. Therefore, A is the correct answer.
Click on evidence in the passage below that supports the fact that science is a human
endeavor influenced by societal, cultural and personal views of the world as well as
personal and societal needs Answer: This is why it is essential for all types of people
around the world from many different communities to become scientists. This ensures
that science and technology responds to their interests and needs and to be sure that
there are diverse ideas to enrich explanations and arguments
Click on evidence in the following passage that encompasses the central reason why
scientific ethics must be considered in any scientific investigation. Answer: Today, it is
necessary to conduct ethical discussions in order to adapt the use of scientific
knowledge to a general context that is in agreement with the basic principles of our
civilization. Scientists should be concerned about the use of scientific knowledge and
they should address the ensuing ethical questions, both in general terms and in terms of
their own work.
In a drill during basketball practice, a player runs the length of the 30.-meter court and
back. The player does this three times in 60. seconds.
The average speed of the player during the drill is Answer: 3.0 m/s v = d/t
An object accelerates uniformly from 3.0 meters per second east to 8.0 meters per
second east in 2.0 seconds. What is the magnitude of the acceleration of the object
Answer: 2.5 m/s^2
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
