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प्रश्न
Guess whose tail is the longest. Now measure the tails. How good is your guess?






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उत्तर
I think the tail of the monkey is the longest.
Correct measurements are as follows:
| Animal | Lizard | Rat | Cat | Puppy | Monkey | Pig |
| Length of tail | 1.7 cm | 1.3 cm | 1.2 cm | 0.8 cm | 2.2 cm | 1.0 cm |
Hint: Use thread to measure the tails of animals given in the figure.
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संबंधित प्रश्न
Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):
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| Property | Definition | Basic Unit | Instrument used for measuring |
| Length | |||
| Mass | |||
| Volume | |||
| Time |
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- 10-3 is one ______
- SI Unit of time is ______
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- ______ is a fundamental quantity.
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