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100+ Free Chiba Entrance Science Practice Questions

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2026 Statistics

Key Facts: Chiba Entrance Science Exam

50 min / 100 points

Length and maximum score of the Chiba science paper

Chiba Prefectural Board of Education R9 (2027) notice on examination subjects and question policy

5 subjects / 500 points

Kokugo, mathematics, English, science, and social studies taken over two days under identical prefecture-wide conditions

Chiba general selection implementation guidelines

JPY 2,200

Entrance examination fee for the full-time course

Chiba general selection implementation guidelines

100

Free original MCQ practice questions in this study bank

OpenExamPrep

The Chiba public high school entrance science paper is a 50-minute, 100-point written exam set by the Chiba Prefectural Board of Education, covering physics, chemistry, biology, and earth science from the MEXT junior-high curriculum with experiment data interpretation. This page offers 100 original practice questions with explanations as a study aid — original items, not official past papers.

Sample Chiba Entrance Science Practice Questions

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

1A sprinter runs 100 m in 20 seconds. What is the sprinter's average speed?
A.0.2 m/s
B.5 m/s
C.20 m/s
D.2000 m/s
Explanation: Average speed = distance ÷ time = 100 m ÷ 20 s = 5 m/s. Dividing distance by the time taken always gives the average speed for the whole journey.
2A cook presses with the same force on a sharp knife and a dull knife. Why does the sharp knife cut more easily?
A.A sharp blade weighs less, so gravity helps it cut
B.Its thin edge concentrates the force on a much smaller area, producing greater pressure
C.A sharp blade increases the total force the cook applies
D.A sharp blade removes all friction between the blade and the food
Explanation: Pressure = force ÷ area. With the same force, a smaller contact area gives a larger pressure, so the thin edge of a sharp knife presses into the food much more strongly than a dull edge.
3In which situation is a person doing work on an object in the physics sense?
A.Holding a heavy bag motionless at shoulder height
B.Carrying a bag while walking at constant height along a level corridor
C.Lifting a box from the floor onto a shelf
D.Pushing hard against a wall that does not move
Explanation: Work is done only when a force moves an object in the direction of the force (work = force × distance moved). Lifting the box moves it upward in the direction of the lifting force, so work is done on it.
4A resistor of 4 Ω is connected to a 12 V battery. What current flows through the resistor?
A.0.33 A
B.3 A
C.8 A
D.48 A
Explanation: By Ohm's law, current = voltage ÷ resistance: I = 12 V ÷ 4 Ω = 3 A.
5An appliance runs on a 100 V mains supply and draws a current of 0.8 A. What is its electric power consumption?
A.80 W
B.125 W
C.100.8 W
D.800 W
Explanation: Electric power = voltage × current: P = 100 V × 0.8 A = 80 W. One watt is one volt-ampere.
6A current flows through a long straight wire. Viewed from the end of the wire, what pattern do the magnetic field lines around the wire make?
A.Straight lines radiating outward like spokes
B.Parallel straight lines running along the wire
C.Concentric circles centered on the wire
D.No magnetic field appears unless an iron core is inserted
Explanation: A current in a straight wire produces a magnetic field whose field lines are concentric circles around the wire, with the direction given by the right-hand grip rule. This can be shown with compasses placed around the wire on a card.
7A bus is traveling at 54 km/h. What is this speed in meters per second?
A.15 m/s
B.5.4 m/s
C.194 m/s
D.54 m/s
Explanation: 54 km/h = 54,000 m in 3,600 s, so 54,000 ÷ 3,600 = 15 m/s. Dividing a km/h value by 3.6 converts it to m/s.
8A crate presses on the floor with a force of 300 N spread over a contact area of 0.5 m^2. What is the pressure on the floor?
A.150 Pa
B.300 Pa
C.600 Pa
D.1200 Pa
Explanation: Pressure = force ÷ area = 300 N ÷ 0.5 m^2 = 600 Pa. Dividing by an area smaller than 1 m^2 gives a pressure larger than the force value.
9A metal block hanging from a string is fully submerged in water, then lowered deeper while remaining fully submerged and not touching the bottom. What happens to the water pressure on the block and to the buoyant force on it?
A.Both the pressure and the buoyant force increase
B.The pressure increases while the buoyant force stays the same
C.Both the pressure and the buoyant force stay the same
D.The pressure stays the same while the buoyant force increases
Explanation: Water pressure increases with depth, so the pressure on the block grows as it is lowered. The buoyant force, however, equals the weight of water displaced, and a fully submerged block displaces the same volume of water at any depth, so the buoyant force does not change.
10A student pushes a box across a floor with a steady horizontal force of 30 N, moving it 4.0 m in the direction of the force. How much work does the student do on the box?
A.7.5 J
B.26 J
C.120 J
D.34 J
Explanation: Work = force × distance moved in the direction of the force = 30 N × 4.0 m = 120 J. One joule is one newton-meter.

About the Chiba Entrance Science Exam

The Chiba Public High School Entrance Examination science paper is one of the five subject papers in the prefecture-wide academic examination administered by the Chiba Prefectural Board of Education for admission to prefectural public high schools. Chiba holds the main examination over two days in mid-February (February 16-17 in 2027) under identical conditions across the prefecture, followed by a makeup examination (February 25 in 2027). Day 1 covers kokugo and mathematics in 50 minutes each and English in 60 minutes; day 2 covers science and social studies in 50 minutes each; every subject is scored out of 100 points. The science paper follows the MEXT Course of Study for junior high school, drawn in good balance from the first field (physics and chemistry) and the second field (biology and earth science), and emphasizes interpreting observation and experiment data, graphs, and tables. Results are combined with the junior-high school report (chousasho, multiplied by a school-set factor K between 0.5 and 2) and school-set tests; there is no single passing score. This page provides 100 original English-language practice items, including simple calculation and data-interpretation questions, as a study adaptation — original items, not official past problems.

Assessment

The real Chiba science subject is one of the five academic subjects (kokugo, suugaku, eigo, rika, shakai) of the prefecture-wide entrance examination administered over two days under identical conditions across the prefecture (the R9 / 2027 main examination is scheduled for February 16-17, 2027, with a makeup examination on February 25, 2027; the preceding R8 / 2026 examination was held on February 17-18, 2026). The science paper is given on day 2, lasts 50 minutes, and is scored out of 100 points, following the MEXT junior-high science curriculum drawn in good balance from the first field (physics and chemistry) and the second field (biology and earth science), with items ranging from knowledge recall to experiment data analysis. This local bank is an English-language study adaptation aligned to the same curriculum content, including simple calculation and data-interpretation items; the items are original and are not official past problems, and the MCQ format does not reproduce the official written-explanation work.

Time Limit

50 minutes for the science subject paper (per the official R9 / 2027 notice)

Passing Score

No fixed pass mark; each subject paper is scored out of 100 points and admission combines the academic test total (500 points) with the junior-high school report (chousasho, multiplied by a school-set factor K between 0.5 and 2) and school-set tests (10-100 points; the prefecture-made thinking-questions test is 100 points), with school-specific weighting and an optional two-stage selection for up to 20% of places

Exam Fee

JPY 2,200 entrance examination fee for the full-time course; JPY 950 for the part-time and correspondence courses (Chiba general selection implementation guidelines) (Chiba Prefectural Board of Education)

Chiba Entrance Science Exam Content Outline

About 22% of this practice bank; a regular strand of the official paper

Physics

Speed, forces and pressure, work and simple machines, Ohm's law and circuits, electric power, magnetism, and light and sound, with calculation items.

About 26% of this practice bank

Chemistry

Density, gases, solutions and concentration, chemical change and mass conservation, formulas, ions, and acids and alkalis.

About 26% of this practice bank

Biology

Cells, photosynthesis and transpiration, animal classification, the human body, heredity, and ecosystems.

About 26% of this practice bank

Earth Science

Volcanoes and rocks, strata and earthquakes, weather and humidity, and astronomy, with data-table and calculation items.

How to Pass the Chiba Entrance Science Exam

What You Need to Know

  • Passing score: No fixed pass mark; each subject paper is scored out of 100 points and admission combines the academic test total (500 points) with the junior-high school report (chousasho, multiplied by a school-set factor K between 0.5 and 2) and school-set tests (10-100 points; the prefecture-made thinking-questions test is 100 points), with school-specific weighting and an optional two-stage selection for up to 20% of places
  • Assessment: The real Chiba science subject is one of the five academic subjects (kokugo, suugaku, eigo, rika, shakai) of the prefecture-wide entrance examination administered over two days under identical conditions across the prefecture (the R9 / 2027 main examination is scheduled for February 16-17, 2027, with a makeup examination on February 25, 2027; the preceding R8 / 2026 examination was held on February 17-18, 2026). The science paper is given on day 2, lasts 50 minutes, and is scored out of 100 points, following the MEXT junior-high science curriculum drawn in good balance from the first field (physics and chemistry) and the second field (biology and earth science), with items ranging from knowledge recall to experiment data analysis. This local bank is an English-language study adaptation aligned to the same curriculum content, including simple calculation and data-interpretation items; the items are original and are not official past problems, and the MCQ format does not reproduce the official written-explanation work.
  • Time limit: 50 minutes for the science subject paper (per the official R9 / 2027 notice)
  • Exam fee: JPY 2,200 entrance examination fee for the full-time course; JPY 950 for the part-time and correspondence courses (Chiba general selection implementation guidelines)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Chiba Entrance Science Study Tips from Top Performers

1Memorize the core formulas with units: density = mass/volume, V = IR, W = VA, concentration % = solute/solution — then drill unit conversions.
2For experiment items, identify what was changed and what was kept constant before interpreting any result table.
3Gas tests are high-frequency: glowing splint for oxygen, pop for hydrogen, limewater for carbon dioxide — learn generation methods alongside.
4In earth science, practice reading humidity tables and P/S-wave travel-time problems until the setup is automatic.
5Practice under a 50-minute cap and write out reasoning in full sentences, because the official paper grades written explanations.

Frequently Asked Questions

Is the real Chiba science entrance paper multiple-choice?

No. The official paper is answered in writing, mixing knowledge items with experiment-based data interpretation and short written explanations. The MCQs here are an English-language study adaptation; practice explaining results in full sentences as well.

How long is the Chiba science paper and how is it scored?

The science paper lasts 50 minutes and is scored out of 100 points. Admission combines all five subject results (500 points in total) with the junior-high school report (chousasho, multiplied by a school-set factor K between 0.5 and 2) and school-set tests; there is no fixed passing score.

Does this bank include calculation and data-interpretation questions?

Yes. The bank includes simple calculation items (density, speed, Ohm's law, electric power, solution concentration, humidity) and items that ask you to interpret described data tables and experimental results.

Who administers the exam and what does it cost?

The Chiba Prefectural Board of Education administers the selection. The entrance examination fee is JPY 2,200 for the full-time course and JPY 950 for the part-time and correspondence courses.

How is admission decided in Chiba?

Chiba holds the main examination over two days in mid-February, with a makeup examination later in February. Each high school combines the 500-point academic total with the chousasho report (multiplied by a school-set factor K between 0.5 and 2) and school-set tests such as interviews, essays, or the prefecture-made thinking-questions test; some schools use subject multipliers and a two-stage selection for up to 20% of places.