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100+ Free USVI NGSS Science Grade 11 Practice Questions

Prepare for the U.S. Virgin Islands NGSS Science Summative Assessment, Grade 11 exam with instant access — no signup required.

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2026 Statistics

Key Facts: USVI NGSS Science Grade 11 Exam

USVI NGSS Science Grade 11 is the territory's annual spring high school science assessment for eleventh graders in the U.S. Virgin Islands, given in the March 16-April 24, 2026 window. Administered online by VIDE via Cambium Assessment, it samples the high school NGSS band across Physical Science, Life Science, and Earth and Space Science, with engineering design embedded. Each student receives six scored item clusters plus 12 scored stand-alone items in a recommended 90 minutes or more, and results are reported as Below Standard, Near Standard, Met Standard, or Exceeded Standard.

Sample USVI NGSS Science Grade 11 Practice Questions

Try these sample questions to test your USVI NGSS Science Grade 11 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which periodic trend explains why atomic radius generally decreases from left to right across a period in the periodic table?
A.Increasing effective nuclear charge pulls valence electrons closer to the nucleus
B.Increasing electron shielding pushes outer electrons further away
C.Decreasing number of protons weakens the attraction to valence electrons
D.Increasing atomic mass expands the volume of the electron cloud
Explanation: Across a period, protons are added to the nucleus while electrons enter the same principal energy level. This increases the effective nuclear charge, pulling the valence electrons tighter toward the nucleus and decreasing the overall atomic radius.
2Elements in Group 17 (the halogens) have 7 valence electrons. What type of ion do they typically form during chemical bonding?
A.Anions with a -1 charge by gaining 1 electron
B.Cations with a +1 charge by losing 1 electron
C.Anions with a -7 charge by gaining 7 electrons
D.Cations with a +7 charge by losing 7 electrons
Explanation: Halogens have 7 valence electrons and achieve a stable noble gas octet by gaining 1 electron. Gaining a negatively charged electron forms an anion with a -1 oxidation state.
3According to the balanced chemical equation 2 H2 + O2 -> 2 H2O, how many moles of water (H2O) are produced when 4.0 moles of hydrogen gas (H2) react completely with excess oxygen gas?
A.4.0 moles
B.2.0 moles
C.8.0 moles
D.1.0 mole
Explanation: The stoichiometric mole ratio between H2 and H2O is 2:2 (or 1:1). Therefore, reacting 4.0 moles of H2 yields 4.0 moles of H2O.
4Water (H2O) has a boiling point of 100 °C, whereas hydrogen sulfide (H2S) has a boiling point of -60 °C. Which intermolecular force accounts for water's significantly higher boiling point?
A.Hydrogen bonding between polar H2O molecules
B.London dispersion forces between nonpolar molecules
C.Covalent bonding between hydrogen and oxygen atoms within the molecule
D.Ionic attraction between free hydrogen and hydroxide ions
Explanation: Water forms strong intermolecular hydrogen bonds because hydrogen is covalently bonded to highly electronegative oxygen. These hydrogen bonds require substantial thermal energy to overcome, resulting in a high boiling point compared to H2S, which only forms weaker dipole-dipole forces.
5When methane (CH4) combusts in oxygen gas, heat is released to the surroundings. What can be concluded about the enthalpy change (delta H) and energy during this reaction?
A.The reaction is exothermic with a negative delta H because bond formation releases more energy than bond breaking absorbs
B.The reaction is endothermic with a positive delta H because bond breaking releases energy into the surroundings
C.The reaction is endothermic with a negative delta H because system temperature increases
D.The reaction is exothermic with a positive delta H because total energy of the universe increases
Explanation: Combustion releases thermal energy into the surroundings, making it an exothermic process with a negative enthalpy change (delta H < 0). Energy is absorbed to break reactant bonds, but a greater amount of energy is released when forming product bonds in CO2 and H2O.
6According to collision theory, why does increasing the temperature of a chemical reaction mixture increase the rate of reaction?
A.It increases particle kinetic energy, raising collision frequency and the fraction of collisions exceeding activation energy
B.It lowers the overall activation energy barrier required for reactants to transform into products
C.It increases the concentration of reactant particles per unit volume
D.It aligns the orientation of colliding particles so every collision results in a chemical reaction
Explanation: Higher temperature increases the average kinetic energy of reactant particles. This causes particles to move faster, increasing both the overall frequency of collisions and, more importantly, the percentage of collisions that possess sufficient kinetic energy to overcome the activation energy barrier.
7Consider the reversible gas-phase reaction N2(g) + 3 H2(g) <=> 2 NH3(g) + heat. According to Le Chatelier's Principle, how will increasing the total pressure on the container affect the equilibrium state?
A.Equilibrium shifts to the right (toward NH3) because the product side has fewer total moles of gas
B.Equilibrium shifts to the left (toward N2 and H2) because higher pressure favors reactant decomposition
C.Equilibrium remains unchanged because pressure only alters reaction temperature
D.Equilibrium shifts to the right because ammonia gas expands under pressure
Explanation: Increasing pressure shifts a gas-phase equilibrium toward the side with fewer moles of gas to relieve the pressure stress. The reactant side has 4 moles of gas (1 N2 + 3 H2) while the product side has 2 moles of gas (2 NH3), so the reaction shifts right to form more NH3.
8A sample of 12.0 grams of pure carbon (molar mass = 12.0 g/mol) burns completely in excess oxygen gas according to C + O2 -> CO2. What mass of carbon dioxide (CO2, molar mass = 44.0 g/mol) is produced?
A.44.0 grams
B.12.0 grams
C.32.0 grams
D.56.0 grams
Explanation: 12.0 g of C corresponds to 1.0 mole of carbon (12.0 g / 12.0 g/mol). According to the 1:1 mole ratio in C + O2 -> CO2, 1.0 mole of C yields 1.0 mole of CO2. The mass of 1.0 mole of CO2 is 44.0 grams.
9When Uranium-238 undergoes alpha decay, it emits an alpha particle (Helium-4 nucleus). What isotope is formed as the daughter product?
A.Thorium-234 (atomic number 90)
B.Plutonium-242 (atomic number 94)
C.Uranium-234 (atomic number 92)
D.Radium-226 (atomic number 88)
Explanation: An alpha particle consists of 2 protons and 2 neutrons (mass number 4, atomic number 2). Emitting an alpha particle reduces Uranium's mass number from 238 to 234 (238 - 4) and its atomic number from 92 to 90 (92 - 2), producing Thorium-234.
10Which nuclear process powers the core of main-sequence stars like our Sun?
A.Nuclear fusion of light hydrogen nuclei into heavier helium nuclei
B.Nuclear fission of heavy uranium nuclei splitting into lighter fragments
C.Alpha particle decay of radioactive elements within the stellar core
D.Chemical oxidation of compressed hydrogen gas
Explanation: Main-sequence stars generate energy through nuclear fusion, combining lightweight hydrogen nuclei (protons) into heavier helium nuclei under extreme core temperature and gravitational pressure.

About the USVI NGSS Science Grade 11 Exam

The U.S. Virgin Islands Science Assessment for Grade 11 is the territory's NGSS science summative test, administered online territory-wide by VIDE through Cambium Assessment, Inc. The Grade 11 (high school) test samples the full high school NGSS band, drawing on biology, chemistry, physics, and Earth and space science. Items are organized as phenomenon-based clusters and stand-alone tasks that measure three-dimensional science learning, integrating Science and Engineering Practices (SEPs), Disciplinary Core Ideas (DCIs), and Crosscutting Concepts (CCCs). This practice bank is an English-language four-option MCQ study aid for quantitative analysis, biochemical mechanisms, physical laws, and Earth system dynamics; it is not an official-format simulation.

Assessment

Question count not published by the exam provider

Time Limit

Recommended at least 90 minutes plus roughly 10 minutes for directions, administered on one day or across two consecutive days; students may take additional time, and a 20-minute pause rule applies.

Passing Score

No pass mark. Science results are reported in four performance levels: Below Standard, Near Standard, Met Standard, and Exceeded Standard.

Exam Fee

Free for eligible U.S. Virgin Islands public school students. (Virgin Islands Department of Education (VIDE), delivered via Cambium Assessment, Inc.)

USVI NGSS Science Grade 11 Exam Content Outline

discipline result (no published percentage)

Physical Science

High school band: atomic structure, periodic trends and chemical bonding, stoichiometry and thermochemistry, reaction rates and Le Chatelier's principle, nuclear processes, momentum conservation, Coulomb's and gravitational laws, thermodynamics, and wave and electromagnetic interactions.

discipline result (no published percentage)

Life Science

High school band: DNA transcription and translation, macromolecules, cellular energetics and ATP synthesis, homeostatic feedback, carrying capacity and ecosystem dynamics, heredity and biotechnology, and evolutionary mechanisms.

discipline result (no published percentage)

Earth and Space Science

High school band: Hertzsprung-Russell diagrams and stellar life cycles, nucleosynthesis and Big Bang evidence, Kepler's laws, radiometric isotope decay and stratigraphy, mantle convection and seafloor spreading, atmospheric and ocean circulation, climate feedbacks, and resource use and sustainability.

embedded, not separately reported

Engineering Design (embedded)

Modeling complex real-world engineering problems, quantitative trade-off analysis, computational simulation, and system optimization; engineering design appears inside science clusters rather than as its own reported discipline.

How to Pass the USVI NGSS Science Grade 11 Exam

What You Need to Know

  • Passing score: No pass mark. Science results are reported in four performance levels: Below Standard, Near Standard, Met Standard, and Exceeded Standard.
  • Assessment: Question count not published by the exam provider
  • Time limit: Recommended at least 90 minutes plus roughly 10 minutes for directions, administered on one day or across two consecutive days; students may take additional time, and a 20-minute pause rule applies.
  • Exam fee: Free for eligible U.S. Virgin Islands public school students.

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

USVI NGSS Science Grade 11 Study Tips from Top Performers

1Practice stoichiometry calculations and stoichiometry-based energy changes (delta H) in chemical reactions.
2Trace the steps of protein synthesis from mRNA transcription in the nucleus to codon translation at the ribosome.
3Understand conservation of momentum (p = mv) and energy in elastic and inelastic collisions.
4Use Hertzsprung-Russell (H-R) diagrams to compare stellar mass, luminosity, temperature, and evolutionary paths.
5Analyze feedback loops in Earth's climate system, such as ice-albedo and ocean thermal absorption effects.

Frequently Asked Questions

Who takes the USVI NGSS Grade 11 Science test?

All public school eleventh grade students in the U.S. Virgin Islands take the NGSS Science Summative Test annually; the 2026 window ran March 16 to April 24, 2026.

What standards are tested on the USVI Grade 11 Science test?

The Grade 11 test is the high school form and samples the whole high school NGSS band across Physical Science, Life Science, and Earth and Space Science, with engineering design embedded in the science clusters.

How many questions are on the USVI Grade 11 Science test?

VIDE does not publish a single total, because clusters carry several linked interactions. Each student receives six scored item clusters plus 12 scored stand-alone items, and some additional field-test items that do not count toward the score.

How long does the USVI Grade 11 Science test take?

At least 90 minutes is recommended, plus about 10 minutes to read directions. It can be given on one day or across two consecutive days, and students who need more time are given it.

What tools can Grade 11 students use during the test?

An embedded Desmos calculator is available to all students, and Grade 11 test takers also get either an online periodic table or a printed one, which VIDE posts in English and Spanish.

How are scores reported for the USVI NGSS Science Grade 11 test?

There is no pass mark. Results are reported in four performance levels — Below Standard, Near Standard, Met Standard, and Exceeded Standard — and VIDE publishes the combined Met & Exceeded figure as the school proficiency rate.

Is this OpenExamPrep practice bank an official test replacement?

No. This bank is an independent English-language four-option MCQ study adaptation created to assist high school students in preparing for the assessment, not an official translation or a simulation of the official item formats.