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100+ Free Puerto Rico CRECE Science — Grade 8 Practice Questions

Prepare for the Cernimiento, Revisión y Evaluación Continua del Estudiante (CRECE) — Science (Ciencias), Grade 8 exam with instant access — no signup required.

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DEPR reported island-wide 54% proficiency in Ciencias for the 2025-2026 administration; DEPR does not publish a separate rate per grade, and CRECE has no pass mark. Pass Rate
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Key Facts: Puerto Rico CRECE Science — Grade 8 Exam

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Standards Framework

Target Grade

Exam Fee

Question Bank Size

Difficulty Distribution

Adaptation Disclosure

CRECE Grade 8 Science is a physics assessment: it reports one category, Ciencias Físicas-Física, drawn from the grade 8 Física Preparatoria standards on motion and force, work, energy and power, machines, electricity and magnetism, and waves including seismic waves. OpenExamPrep's 100-question practice bank is an English-language MCQ study adaptation and is not an official-format simulation or a translation of the official DEPR CRECE assessment.

Sample Puerto Rico CRECE Science — Grade 8 Practice Questions

Try these sample questions to test your Puerto Rico CRECE Science — Grade 8 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which fundamental force keeps planets in stable orbits around the Sun rather than flying off into deep space?
A.Magnetic force
B.Electromagnetic force
C.Gravitational force
D.Atmospheric pressure
Explanation: Gravity is the attractive force between objects with mass. The Sun's massive gravitational pull constantly pulls planets toward it, balancing their forward motion to maintain stable elliptical orbits.
2When two equal forces act on an object in opposite directions, what is the net force acting on the object?
A.Double the strength of one force
B.Zero net force
C.Quadruple the strength of one force
D.Negative velocity
Explanation: Equal magnitude forces in opposite directions cancel each other out vectorially (F - F = 0), yielding a net force of zero, resulting in no change in motion.
3Which of Newton's laws of motion states that an object at rest will remain at rest unless acted upon by an unbalanced external force?
A.First Law of Motion (Law of Inertia)
B.Second Law of Motion (F = ma)
C.Third Law of Motion (Action-Reaction)
D.Law of Universal Gravitation
Explanation: Newton's First Law (Law of Inertia) states that objects maintain their state of rest or constant velocity unless compelled to change by a net unbalanced force.
4A runner completes a 400-meter race around a track in 50 seconds. What is the runner's average speed?
A.4 m/s
B.8 m/s
C.20 m/s
D.200 m/s
Explanation: Average speed is calculated as total distance divided by total time: Speed = 400 m / 50 s = 8 m/s.
5According to Newton's Second Law of Motion (F = ma), if you double the net force applied to a toy car while keeping its mass constant, what happens to its acceleration?
A.The acceleration drops to one-half of its original value.
B.The acceleration doubles.
C.The acceleration quadruples.
D.The acceleration remains completely unchanged.
Explanation: Acceleration is directly proportional to net force (a = F/m). If net force doubles while mass remains constant, acceleration doubles.
6A swimmer pushes backward against the pool wall with their feet. According to Newton's Third Law, what propels the swimmer forward?
A.The water absorbing the force without reacting
B.The wall pushing forward against the swimmer's feet with equal and opposite force
C.Friction between water molecules pulling the swimmer's body forward
D.Gravity pulling the swimmer toward the bottom of the pool
Explanation: Newton's Third Law states forces occur in action-reaction pairs. When the swimmer exerts a backward force on the wall, the wall exerts an equal and opposite forward reaction force on the swimmer.
7According to Newton's Law of Universal Gravitation, what happens to the gravitational force between two planets if the distance between their centers is doubled?
A.The gravitational force increases by a factor of 4.
B.The gravitational force is reduced to one-half (1/2) of its original strength.
C.The gravitational force is reduced to one-fourth (1/4) of its original strength.
D.The gravitational force remains unchanged.
Explanation: Gravitational force follows an inverse-square law with distance (F ∝ 1/r²). Doubling the distance (2r) reduces the gravitational force to 1/(2)² = 1/4 of its initial value.
8A 10 kg wooden box is pulled across a flat floor with a horizontal forward force of 50 N. If frictional force opposing motion is 20 N, what is the box's acceleration?
A.7.0 m/s²
B.3.0 m/s²
C.5.0 m/s²
D.2.0 m/s²
Explanation: Net force = Applied force - Friction = 50 N - 20 N = 30 N. Acceleration = F_net / m = 30 N / 10 kg = 3.0 m/s².
9A car travels 60 kilometers north in 1 hour. Which quantity describes this motion as a velocity rather than a speed?
A.60 km/h north
B.60 km/h
C.60 kilometers
D.1 hour
Explanation: Speed tells only how fast an object moves, while velocity is speed together with a direction. Because "60 km/h north" states both the rate and the direction of travel, it is a velocity. Velocity is therefore a vector quantity and speed is a scalar quantity.
10A bus pulling away from a stop goes from 0 m/s to 12 m/s in 6 seconds. Which physical quantity describes this change in motion?
A.Acceleration
B.Mass
C.Displacement
D.Inertia
Explanation: Acceleration is the rate at which velocity changes over time. Here the velocity changes by 12 m/s over 6 s, so the bus accelerates at 2 m/s². When velocity decreases instead, the same quantity is often called deceleration.

About the Puerto Rico CRECE Science — Grade 8 Exam

The Cernimiento, Revisión y Evaluación Continua del Estudiante (CRECE) Grade 8 Science assessment is reported under a single official category, Ciencias Físicas-Física, because grade 8 in the Puerto Rico Core Standards 2022 is Física Preparatoria. The course covers forces and motion (8.CFF2), energy and its interactions with electricity and magnetism (8.CFF3), waves and the transfer of information (8.CFF4), and science and engineering practices (8.IT1 and 8.IT2). OpenExamPrep's 100-question practice bank is an English-language MCQ study adaptation and is not an official-format simulation or a translation of the official DEPR CRECE assessment.

Assessment

DEPR reports CRECE Ciencias at grade 8 under these official categories: Ciencias Físicas-Física. Under the Puerto Rico Core Standards 2022 the grade 8 science course is Física Preparatoria. DEPR does not publish per-category item counts or weights. This bank is an English-language MCQ study adaptation distributed across those categories and does not simulate the official format, its Spanish or English delivery language, or its open-response tasks.

Time Limit

Not published by DEPR. CRECE is administered in scheduled school sessions during the spring window (the grade-10 online window ran 13 April to 1 May in 2026).

Passing Score

No pass or fail score. DEPR reports one of four performance levels per subject: Principiante, Aprendiz, Proficiente and Sobresaliente; the combined Proficiente and Sobresaliente share is reported as proficiency.

Exam Fee

Free — no candidate fee; CRECE is funded and administered by DEPR for enrolled students. (Puerto Rico Department of Education (DEPR); delivered by Pearson)

Puerto Rico CRECE Science — Grade 8 Exam Content Outline

Not published

Ciencias Físicas-Física

Physical sciences with a physics emphasis, the single reporting category for grade 8. Grade 8 in the Puerto Rico Core Standards 2022 is Física Preparatoria, covering forces and motion (8.CFF2), energy, electricity and magnetism (8.CFF3), waves and information transfer (8.CFF4), and science and engineering practices (8.IT1, 8.IT2).

How to Pass the Puerto Rico CRECE Science — Grade 8 Exam

What You Need to Know

  • Passing score: No pass or fail score. DEPR reports one of four performance levels per subject: Principiante, Aprendiz, Proficiente and Sobresaliente; the combined Proficiente and Sobresaliente share is reported as proficiency.
  • Assessment: DEPR reports CRECE Ciencias at grade 8 under these official categories: Ciencias Físicas-Física. Under the Puerto Rico Core Standards 2022 the grade 8 science course is Física Preparatoria. DEPR does not publish per-category item counts or weights. This bank is an English-language MCQ study adaptation distributed across those categories and does not simulate the official format, its Spanish or English delivery language, or its open-response tasks.
  • Time limit: Not published by DEPR. CRECE is administered in scheduled school sessions during the spring window (the grade-10 online window ran 13 April to 1 May in 2026).
  • Exam fee: Free — no candidate fee; CRECE is funded and administered by DEPR for enrolled 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

Puerto Rico CRECE Science — Grade 8 Study Tips from Top Performers

1Separate speed, velocity and acceleration, then practise Newton’s three laws and net force problems, remembering to subtract friction before applying F = ma.
2Learn the measurement units the standards name explicitly — newton (N) for force, julio (J) for work and energy, and vatio (W) for power — and the equations T = F × d and P = T/t.
3Distinguish mass from weight and be ready to explain gravitational attraction between celestial bodies and why sunlight is far brighter than light from more luminous but distant stars.
4Trace energy transformations and heat transfer, and contrast kinetic, potential and mechanical energy; know conductors and insulators, series and parallel circuits, magnetic poles and electromagnetism.
5For waves, practise v = f × λ, tell mechanical from electromagnetic and transverse from longitudinal waves, and know P and S seismic waves, the focus and epicentre, and earthquake and tsunami preparedness for Puerto Rico.

Frequently Asked Questions

What is the CRECE Grade 8 Science assessment?

CRECE (Cernimiento, Revisión y Evaluación Continua del Estudiante (CRECE)) is the standardized assessment system administered by the Puerto Rico Department of Education (DEPR) to measure student academic growth and achievement based on the Puerto Rico Core Standards (PRCS 2022).

Is this question bank an official DEPR test release or direct translation?

No. Please note that OpenExamPrep's 100-question practice bank is an English-language MCQ study adaptation and not an official-format simulation or translation of the official DEPR CRECE assessment.

What topics are covered in the Grade 8 Science assessment?

DEPR reports this test under the following official categories: Ciencias Físicas-Física. Under the Puerto Rico Core Standards 2022 the grade 8 science course is Física Preparatoria. DEPR does not publish weights for these categories.

How are CRECE test scores categorized?

CRECE has no pass mark. DEPR reports one of four performance levels for each subject: Principiante, Aprendiz, Proficiente and Sobresaliente. Reports combine Proficiente and Sobresaliente into a single proficiency figure, and results are delivered through the Pearson ADAM platform to schools, regions and families.

How can students use this practice bank to prepare for CRECE Grade 8 Science?

Students can review concepts in plate tectonics, atomic structure, genetics, cellular respiration, Newton's laws, and experimental design while receiving instant feedback and thorough explanations for both correct and incorrect options.