OSAT 151 Practice Test Solved 100% Correct
A fourth-grade teacher would like to support students' observational skills as part of the
science curriculum. Participating in which of the following activities would most
effectively train the students to be good observers? - ANSWER-Identifying common
trees growing around the school using a dichotomous key
A large piece of debris is orbiting earth 2,000 km from Earth's surface at a velocity of
25,000 km/hr. Which of the following statements explains the primary reason why the
orbital debris will likely not strike Earth for many years? - ANSWER-It is falling toward
Earth at close to the same rate that Earth's surface curves away from it.
A school principal is buying new rubber chips for the school's playgrounds. One
playground measures 30 feet by 50 feet and will require 18,000 pounds of rubber chips.
Another playground measures 25 feet by 40 feet. If the second playground will be
covered with the same depth of rubber chips as the first playground, what is the total
number of pounds of rubber chips that will be needed to cover both playgrounds? -
ANSWER-30,000
A scientist at a respected university announces in a press conference the discovery of a
new compound that can kill several types of cancer cells with minimal harm to healthy
cells. Many cancer researchers are unimpressed by the announcement. Which of the
following actions taken by the scientist would convince the larger community of cancer
researchers to take this claim seriously? - ANSWER-Publishing the data and
methodology from the work so it can be replicated
A student would like to design a basket for their bicycle to carry various school items.
The student looks up several commercial designs on the internet and decides they can
make a less expensive basket using materials from a hardware store and from around
the home. The next step in the design process would be to: - ANSWER-Figure out how
much weight the basket needs to carry, what size is practical, and whether it should be
in front or in back.
A team of fifth-grade teachers has established a goal of making greater use of online
environments such as virtual museums and laboratories and real-time observations of
natural events. This approach can be expected to benefit students' learning primarily by:
- ANSWER-Facilitating students' access to a wide range of learning experiences.
A truck was driven 140 miles in 3 ½ hours. If a car is driven the same distance at an
average speed of 20 miles per hour faster than the truck's average speed, how long will
it take the car? - ANSWER-2 1/3 hours
Amara, Bryan, and Corrine have three identical solids made of wood. Amara cuts her
solid so that the resulting cross section is a triangle. Bryan cuts his solid so that the
resulting cross section is a trapezoid. Corrine cuts her solid so that the resulting cross
section is a square. The original solid could be a: - ANSWER-Square pyramid
, An autumn storm system begins to form over a valley. Which of the following
atmospheric patterns is an essential part of the development of this storm? - ANSWER-
Counterclockwise rotation of air around a strengthening area of low pressure
An elementary school is planning to begin an international festival where different
cultural groups will host interactive workshops for students and parents/guardians to
create culturally specific pottery, paintings, and drawings. These events will most likely
lead to: - ANSWER-Increased student engagement in visual art content
An understanding and appreciation of multiple perspectives would be most essential for
the effective completion of which of the following research tasks? - ANSWER-Analyze
the economic and social consequences of immigration to the United States during the
early decades of the twentieth century
As part of a fifth-grade social studies unit on the American Revolution, a teacher wants
to increase students' awareness of the human perspectives that influenced participants
in the struggle for independence. Which of the following student activities is best
designed to achieve that learning goal? - ANSWER-reading a historical novel on the
American Revolution
As part of a Tier 2 intervention in mathematics, three second-grade students will receive
small-group instruction to improve their addition and subtraction computation skills. The
teacher can best ensure that the intervention is achieving the intended outcome by
using which of the following strategies? - ANSWER-Monitoring and documenting the
students' progress frequently
Differences between the North and the South over which of the following topics most
influenced the series of developments that resulted in the U.S. Civil War? - ANSWER-
the status of slavery in the western territories
During a health and wellness lesson, small groups of students examine the nutritional
content of common foods and meals. Each group reviews three meal plans, which
specify the type of food and portion size for each meal plan item. Students research the
nutrient content of the food items in each meal plan, compare the meal plans in terms of
nutrient density and nutritional worth, determine which meal plan is the healthiest
option, and explain why they chose that meal plan. This activity is likely to be
particularly effective in providing students with experience in: - ANSWER-Using critical-
thinking and decision-making skills to enhance personal health
Geologists often use characteristics of mineral that make up igneous rocks, like granite
and basalt, to analyze how they formed. The large size of crystals in an outcrop of
granite indicates that the minerals most likely formed under which of the following
conditions? - ANSWER-Deep below Earth's surface in a slow-cooling body of magma
A fourth-grade teacher would like to support students' observational skills as part of the
science curriculum. Participating in which of the following activities would most
effectively train the students to be good observers? - ANSWER-Identifying common
trees growing around the school using a dichotomous key
A large piece of debris is orbiting earth 2,000 km from Earth's surface at a velocity of
25,000 km/hr. Which of the following statements explains the primary reason why the
orbital debris will likely not strike Earth for many years? - ANSWER-It is falling toward
Earth at close to the same rate that Earth's surface curves away from it.
A school principal is buying new rubber chips for the school's playgrounds. One
playground measures 30 feet by 50 feet and will require 18,000 pounds of rubber chips.
Another playground measures 25 feet by 40 feet. If the second playground will be
covered with the same depth of rubber chips as the first playground, what is the total
number of pounds of rubber chips that will be needed to cover both playgrounds? -
ANSWER-30,000
A scientist at a respected university announces in a press conference the discovery of a
new compound that can kill several types of cancer cells with minimal harm to healthy
cells. Many cancer researchers are unimpressed by the announcement. Which of the
following actions taken by the scientist would convince the larger community of cancer
researchers to take this claim seriously? - ANSWER-Publishing the data and
methodology from the work so it can be replicated
A student would like to design a basket for their bicycle to carry various school items.
The student looks up several commercial designs on the internet and decides they can
make a less expensive basket using materials from a hardware store and from around
the home. The next step in the design process would be to: - ANSWER-Figure out how
much weight the basket needs to carry, what size is practical, and whether it should be
in front or in back.
A team of fifth-grade teachers has established a goal of making greater use of online
environments such as virtual museums and laboratories and real-time observations of
natural events. This approach can be expected to benefit students' learning primarily by:
- ANSWER-Facilitating students' access to a wide range of learning experiences.
A truck was driven 140 miles in 3 ½ hours. If a car is driven the same distance at an
average speed of 20 miles per hour faster than the truck's average speed, how long will
it take the car? - ANSWER-2 1/3 hours
Amara, Bryan, and Corrine have three identical solids made of wood. Amara cuts her
solid so that the resulting cross section is a triangle. Bryan cuts his solid so that the
resulting cross section is a trapezoid. Corrine cuts her solid so that the resulting cross
section is a square. The original solid could be a: - ANSWER-Square pyramid
, An autumn storm system begins to form over a valley. Which of the following
atmospheric patterns is an essential part of the development of this storm? - ANSWER-
Counterclockwise rotation of air around a strengthening area of low pressure
An elementary school is planning to begin an international festival where different
cultural groups will host interactive workshops for students and parents/guardians to
create culturally specific pottery, paintings, and drawings. These events will most likely
lead to: - ANSWER-Increased student engagement in visual art content
An understanding and appreciation of multiple perspectives would be most essential for
the effective completion of which of the following research tasks? - ANSWER-Analyze
the economic and social consequences of immigration to the United States during the
early decades of the twentieth century
As part of a fifth-grade social studies unit on the American Revolution, a teacher wants
to increase students' awareness of the human perspectives that influenced participants
in the struggle for independence. Which of the following student activities is best
designed to achieve that learning goal? - ANSWER-reading a historical novel on the
American Revolution
As part of a Tier 2 intervention in mathematics, three second-grade students will receive
small-group instruction to improve their addition and subtraction computation skills. The
teacher can best ensure that the intervention is achieving the intended outcome by
using which of the following strategies? - ANSWER-Monitoring and documenting the
students' progress frequently
Differences between the North and the South over which of the following topics most
influenced the series of developments that resulted in the U.S. Civil War? - ANSWER-
the status of slavery in the western territories
During a health and wellness lesson, small groups of students examine the nutritional
content of common foods and meals. Each group reviews three meal plans, which
specify the type of food and portion size for each meal plan item. Students research the
nutrient content of the food items in each meal plan, compare the meal plans in terms of
nutrient density and nutritional worth, determine which meal plan is the healthiest
option, and explain why they chose that meal plan. This activity is likely to be
particularly effective in providing students with experience in: - ANSWER-Using critical-
thinking and decision-making skills to enhance personal health
Geologists often use characteristics of mineral that make up igneous rocks, like granite
and basalt, to analyze how they formed. The large size of crystals in an outcrop of
granite indicates that the minerals most likely formed under which of the following
conditions? - ANSWER-Deep below Earth's surface in a slow-cooling body of magma
