6A1_Science_Midterm Test
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Xem trước 25/28 câu hỏi trong đề. Bấm Vào thi để làm bài trực tuyến, được chấm điểm và xem đáp án chi tiết.
Câu 1. Science is the study of ______.
- A. nature
- B. money
- C. cooking
- D. sports
Câu 2. Which branch of science is the study of living things?
- A. Physics
- B. Biology
- C. Geology
- D. Astronomy
Câu 3. A scientist who never cheats or makes up experimental data shows the attitude of ______.
- A. curiosity
- B. humility
- C. integrity
- D. co-operation
Câu 4. Look at the hazard symbol (minh họa: biển cảnh báo hình ngọn lửa, nền vàng/cam, thể hiện chất DỄ CHÁY như xăng, cồn). What should you do with this kind of substance?
- A. Keep it away from naked flames, sparks, or heat sources
- B. Taste it carefully
- C. Pour it on your skin
- D. Heat it strongly
Câu 5. Using a thermometer to measure temperature is an example of which scientific skill?a) This skill is called observing.
- A. Đúng
- B. Sai
Câu 6. Read the statement about technology.b) Technology can prevent natural disasters like earthquakes and hurricanes.
- A. Đúng
- B. Sai
Câu 7. Fill in the blank: Scientists use five main skills. Observing means using sensory organs or ______ to gather accurate information. (Word bank: instruments, guessing, sleeping, hiding)
- A. instruments
- B. guessing
- C. sleeping
- D. hiding
Câu 8. Fill in the blank: A hypothesis is a tentative, ______ explanation for an observation. (Word bank: testable, secret, funny, final)
- A. secret
- B. funny
- C. testable
- D. final
Câu 9. What is the SI base unit of mass?
- A. gram
- B. kilogram
- C. tonne
- D. newton
Câu 10. What is the accuracy of vernier calipers?
- A. 1 cm
- B. 0.1 cm
- C. 0.01 cm
- D. 0.001 cm
Câu 11. What is the multiplying factor of the prefix milli- (m)?
- A. 1,000
- B. 1/100
- C. 1/1,000,000
- D. 1/1,000
Câu 12. The main scale reading of a vernier calipers is 3.10 cm and the 8th vernier mark lines up with a main scale mark. What is the total reading?
- A. 3.08 cm
- B. 3.18 cm
- C. 3.80 cm
- D. 3.90 cm
Câu 13. A triangle has a base of 6 cm and a height of 4 cm. What is its area?
- A. 24 cm²
- B. 10 cm²
- C. 12 cm²
- D. 20 cm²
Câu 14. How should you handle a corrosive substance that spills on your skin?
- A. Wash it off immediately with plenty of clean water
- B. Leave it to dry
- C. Rub it in
- D. Cover it with a cloth
Câu 15. Which instrument is most suitable for measuring a curved object such as a person's waist?
- A. Metre rule
- B. Vernier calipers
- C. Thermometer
- D. Measuring tape
Câu 16. How can parallax error be avoided when reading a scale?
- A. Look at the scale from the side
- B. Place your eye vertically directly above the scale marking
- C. Close both eyes
- D. Read from far away
Câu 17. Which scientific skill means drawing logical conclusions from observations?
- A. Observing
- B. Communicating
- C. Inferring
- D. Planning investigations
Câu 18. Which of the following is a quantitative observation?
- A. The temperature is 37.5 °C.
- B. The liquid is warm.
- C. The water looks clear.
- D. The box feels heavy.
Câu 19. Read the statement about SI units.a) Kelvin (K) is the SI base unit of temperature.
- A. Đúng
- B. Sai
Câu 20. Read the statement about estimating irregular areas.b) Squares that are less than half filled must be counted as full squares.
- A. Đúng
- B. Sai
Câu 21. Read the statement about hazardous substances.c) A hydrogen-air mixture is explosive and can explode when heated or lit.
- A. Đúng
- B. Sai
Câu 22. Read the statement about length measurement.d) A metre rule is more accurate than vernier calipers.
- A. Đúng
- B. Sai
Câu 23. Read the statement about technology.e) Technology can be abused, for example to create deadly weapons such as nuclear bombs.
- A. Đúng
- B. Sai
Câu 24. Fill in the blank: Vernier calipers measure short lengths with an accuracy of ______ cm. (Word bank: 0.01, 0.1, 1, 10)
- A. 0.1
- B. 1
- C. 10
- D. 0.01
Câu 25. Fill in the blank: Parallax error is avoided by placing your eye ______ above the scale marking. (Word bank: vertically, sideways, far, low)
- A. vertically
- B. sideways
- C. far
- D. low
… và còn 3 câu nữa. Bấm Vào thi phía trên để làm toàn bộ 28 câu và xem đáp án.
