Free Measurement Worksheets | Metric System for Kids - Free Printable

Let's solve each question in the worksheet by estimating the most reasonable unit and value for each object. We'll go through each one step-by-step with explanations.

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1. The Height of a Ferris Wheel

Options:
a. 7 m
b. 80 m
c. 7000 m
d. 1 km

Analysis:
- A typical Ferris wheel is quite tall, but not extremely so.
- 7 meters is about the height of a two-story building — too small for a Ferris wheel.
- 7000 meters (7 km) or 1 km (1000 m) are way too large — that’s more than a mountain!
- 80 meters is reasonable — many real Ferris wheels are around 60–100 meters tall.

✔ Correct Answer: b. 80 m

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2. The Length of a Bed

Options:
a. 75 inches
b. 8 m
c. 70 cm
d. 15 feet

Analysis:
- A standard bed is about 6 to 7 feet long.
- 75 inches = 6.25 feet → very close to typical bed length.
- 8 meters = ~26 feet — way too long (like a bus).
- 70 cm = ~27.5 inches — shorter than a person.
- 15 feet = ~4.5 meters — too long for a bed.

✔ Correct Answer: a. 75 inches

*(Note: 75 inches is about 6.25 feet, which is typical for a queen or king-size bed.)*

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3. The Height of the Eiffel Tower

Options:
a. 500 m
b. 330 m
c. 700 m
d. 100 m

Analysis:
- The actual height of the Eiffel Tower is about 300 meters, including antennas.
- 330 m is close — this is the approximate total height (including antenna).
- 500 m and 700 m are too tall — no tower like that exists.
- 100 m is only about the height of a 30-story building — too short.

✔ Correct Answer: b. 330 m

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4. The Length of the Titanic

Options:
a. 500 m
b. 269 m
c. 700 cm
d. 100 km

Analysis:
- The RMS Titanic was approximately 269 meters long.
- 500 m is too long — longer than most modern cruise ships.
- 700 cm = 7 meters — only about the size of a car.
- 100 km = 100,000 meters — that’s the length of a small country!

✔ Correct Answer: b. 269 m

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5. The Height of the Statue of Liberty

Options:
a. 100 m
b. 80 cm
c. 93 m
d. 10 km

Analysis:
- The statue itself (not including the pedestal) is about 46 meters tall.
- But from base to top (including pedestal), it's about 93 meters.
- 100 m is close but slightly overestimated.
- 80 cm is just under 2.6 feet — too small.
- 10 km = 10,000 meters — absurdly large.

✔ Correct Answer: c. 93 m

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6. The Length of a Rattlesnake

Options:
a. 15 cm
b. 1.5 m
c. 1.2 km
d. 15 m

Analysis:
- Most rattlesnakes are 1 to 1.5 meters long.
- 15 cm = 6 inches — too short (like a small lizard).
- 1.2 km = 1200 meters — a kilometer-long snake? Impossible.
- 15 m = 50 feet — way too long.

✔ Correct Answer: b. 1.5 m

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✔ Final Answers:

1. Ferris Wheel: b. 80 m
2. Bed: a. 75 inches
3. Eiffel Tower: b. 330 m
4. Titanic: b. 269 m
5. Statue of Liberty: c. 93 m
6. Rattlesnake: b. 1.5 m

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🔍 Summary Tips:

- Use real-world comparisons to estimate.
- Be aware of unit conversions (e.g., 1 meter ≈ 3.3 feet, 1 inch ≈ 2.54 cm).
- Avoid extreme values unless you're sure — e.g., 7000 m or 10 km are often red herrings.

Let me know if you'd like this formatted as a printable answer sheet!