Questions on Units and Measurement
Units and Measurement – Grade 6
Multiple-Choice Questions
1. Which of the following is a unit of length?
A) Kilogram
B) Liter
C) Meter
D) Celsius
E) Second
2. What is the most appropriate unit to measure the length of a pencil?
A) Kilometer
B) Meter
C) Centimeter
D) Liter
E) Milliliter
3. Which unit would best measure the weight of a watermelon?
A) Gram
B) Kilogram
C) Milligram
D) Liter
E) Meter
4. How many centimeters are there in 1 meter?
A) 10
B) 100
C) 1,000
D) 1
E) 1,500
5. Which instrument is used to measure temperature?
A) Ruler
B) Stopwatch
C) Thermometer
D) Scale
E) Compass
6. What is the standard unit of volume in the metric system?
A) Meter
B) Gram
C) Liter
D) Celsius
E) Newton
7. What would you use to measure the time it takes to run 100 meters?
A) Thermometer
B) Ruler
C) Stopwatch
D) Clock
E) Scale
8. Which metric unit is most suitable for measuring the thickness of a coin?
A) Meter
B) Centimeter
C) Millimeter
D) Kilometer
E) Liter
9. What unit would be most appropriate for measuring the capacity of a bathtub?
A) Liter
B) Milliliter
C) Gram
D) Meter
E) Kilogram
10. How many milliliters are in 2 liters?
A) 20
B) 200
C) 2,000
D) 200,000
E) 100
11. What is the temperature at which water freezes in Celsius?
A) 100°C
B) 50°C
C) 0°C
D) −10°C
E) 32°C
12. If a bag of flour weighs 2,500 grams, how many kilograms does it weigh?
A) 2.5 kg
B) 25 kg
C) 0.25 kg
D) 250 kg
E) 1.5 kg
13. What would be the most appropriate unit for measuring the length of a soccer field?
A) Millimeter
B) Kilometer
C) Meter
D) Centimeter
E) Gram
14. Which of these units is used to measure mass?
A) Liter
B) Meter
C) Gram
D) Celsius
E) Second
15. What is the symbol for kilometers?
A) kg
B) ml
C) km
D) kl
E) mm
16. A 1.5-liter bottle contains how many milliliters?
A) 150
B) 1,500
C) 15,000
D) 1.5
E) 105
17. What would be the best unit to measure the distance between two cities?
A) Kilometer
B) Meter
C) Centimeter
D) Millimeter
E) Liter
18. What tool would you use to measure the height of a tree?
A) Scale
B) Thermometer
C) Stopwatch
D) Measuring tape
E) Graduated cylinder
19. Which unit measures how hot or cold something is?
A) Gram
B) Liter
C) Degree Celsius
D) Meter
E) Kilometer
20. Which of these measurements would best describe the amount of water in a cup?
A) Kilogram
B) Millimeter
C) Liter
D) Milliliter
E) Centimeter
Answer Key with Explanations
1. C) Meter – A meter is a unit of length.
2. C) Centimeter – Pencils are small, so centimeters are best.
3. B) Kilogram – Watermelons are heavy, and kilograms are for heavier objects.
4. B) 100 – 1 meter = 100 centimeters.
5. C) Thermometer – Measures temperature.
6. C) Liter – Standard unit of volume.
7. C) Stopwatch – Measures elapsed time.
8. C) Millimeter – Millimeters are used for very small measurements.
9. A) Liter – A bathtub holds several liters of water.
10. C) 2,000 – 1 liter = 1,000 milliliters; 2 × 1,000 = 2,000
11. C) 0°C – Water freezes at 0 degrees Celsius.
12. A) 2.5 kg – 2,500 grams ÷ 1,000 = 2.5 kilograms.
13. C) Meter – A soccer field is best measured in meters.
14. C) Gram – Grams measure mass.
15. C) km – "km" stands for kilometers.
16. B) 1,500 – 1.5 × 1,000 = 1,500 milliliters.
17. A) Kilometer – Long distances are measured in kilometers.
18. D) Measuring tape – Used to measure tall or vertical lengths.
19. C) Degree Celsius – Measures temperature.
20. D) Milliliter – Cups hold a small amount of liquid, best measured in milliliters.
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