NES Subtest 103 2026 Questions with Correct
Solutions
Following an investigation on how the length of shadows changes throughout the day, Mr.
Vasquez would like to assess his students' knowledge of the relationship between shadow
length and time. Which of the following would be the best assessment to use?
having students draw pictures of shadows at various times of the day
Which of the following instruments would be most useful to find the volume of a very large
textbook
a metric ruler
Which statement about optical lenses best relates their structure to their function?
Lens shapes can be concave, convex, or a combination of the two.
Ms. Daniels is a second-grade teacher who notices that several of her students are
struggling to determine the value of an unknown addend in an equation. She plans to
reteach this concept in small groups to the students who are struggling. Which of the
following manipulatives would enhance Ms. Daniels' small group lessons on this topic?
Cuisenaire rods can be used to find unknown addends by having students place the known
addend next to the total, then finding the value that fills in the gap or missing part.
Which of the following manipulatives are most appropriate for kindergarten students
learning about two-dimensional shapes?
attribute blocks
,Which equation below models xª•xᵇ = xª⁺ᵇ?
5³ • 5⁴ = 5⁷
Chen's parents have decided to start paying him to do chores. For every chore Chen does,
he receives $5.
Based on this information, which of the following statements is true?
The dependent variable is the amount of money Chen makes.
We want to estimate the quotient of 51 and 7. 51 is not a multiple of 7, but we can estimate
the quotient by rounding 51 to a multiple of 7. 49 is equal to 7 times 7 and is very close to
51. Therefore, we know that 51 divided by 7 is approximately equal to 7."
Which of the following strategies is the topic of the lesson?
estimating with benchmark numbers
What are the three main components of the smallest unit of an element that retains all of
the properties of that element?
neutron, electron, proton
the following is an example of a physical change
water boiling
hich of the following observations would indicate a chemical reaction has most likely
occurred?
the production of bubbles, flames, a change in color
, A teacher seals an empty metal container and places it in an ice bath. The sides of the
container collapse. Students are asked to describe their observations and use scientific
reasoning to explain what happened. One student records the following response.
"When the container was placed in ice, I saw the sides get pushed in. This happened
because the air particles that were sealed inside the container got smaller when they got
colder."
What misconception should the teacher address?
Cold molecules are smaller than warm molecules.
Which of the following particles can be found orbiting outside the nucleus of an atom?
electrons
the following best describes an ionic bond
bonds that form when electrons are removed from one atom and given to an atom of another
element
All atoms of a single element have the same number of:
protons.
What are the three main components of the smallest unit of an element that retains all of
the properties of that element?
neutron, electron, proton
Sodium metal and chlorine gas are chemically combined in a closed container to produce
table salt. Which of the following statements correctly compares the combined masses of
the reactants, sodium and chlorine, with the mass of the product, table salt?
Solutions
Following an investigation on how the length of shadows changes throughout the day, Mr.
Vasquez would like to assess his students' knowledge of the relationship between shadow
length and time. Which of the following would be the best assessment to use?
having students draw pictures of shadows at various times of the day
Which of the following instruments would be most useful to find the volume of a very large
textbook
a metric ruler
Which statement about optical lenses best relates their structure to their function?
Lens shapes can be concave, convex, or a combination of the two.
Ms. Daniels is a second-grade teacher who notices that several of her students are
struggling to determine the value of an unknown addend in an equation. She plans to
reteach this concept in small groups to the students who are struggling. Which of the
following manipulatives would enhance Ms. Daniels' small group lessons on this topic?
Cuisenaire rods can be used to find unknown addends by having students place the known
addend next to the total, then finding the value that fills in the gap or missing part.
Which of the following manipulatives are most appropriate for kindergarten students
learning about two-dimensional shapes?
attribute blocks
,Which equation below models xª•xᵇ = xª⁺ᵇ?
5³ • 5⁴ = 5⁷
Chen's parents have decided to start paying him to do chores. For every chore Chen does,
he receives $5.
Based on this information, which of the following statements is true?
The dependent variable is the amount of money Chen makes.
We want to estimate the quotient of 51 and 7. 51 is not a multiple of 7, but we can estimate
the quotient by rounding 51 to a multiple of 7. 49 is equal to 7 times 7 and is very close to
51. Therefore, we know that 51 divided by 7 is approximately equal to 7."
Which of the following strategies is the topic of the lesson?
estimating with benchmark numbers
What are the three main components of the smallest unit of an element that retains all of
the properties of that element?
neutron, electron, proton
the following is an example of a physical change
water boiling
hich of the following observations would indicate a chemical reaction has most likely
occurred?
the production of bubbles, flames, a change in color
, A teacher seals an empty metal container and places it in an ice bath. The sides of the
container collapse. Students are asked to describe their observations and use scientific
reasoning to explain what happened. One student records the following response.
"When the container was placed in ice, I saw the sides get pushed in. This happened
because the air particles that were sealed inside the container got smaller when they got
colder."
What misconception should the teacher address?
Cold molecules are smaller than warm molecules.
Which of the following particles can be found orbiting outside the nucleus of an atom?
electrons
the following best describes an ionic bond
bonds that form when electrons are removed from one atom and given to an atom of another
element
All atoms of a single element have the same number of:
protons.
What are the three main components of the smallest unit of an element that retains all of
the properties of that element?
neutron, electron, proton
Sodium metal and chlorine gas are chemically combined in a closed container to produce
table salt. Which of the following statements correctly compares the combined masses of
the reactants, sodium and chlorine, with the mass of the product, table salt?
