TBQ - Estimation and scientific reasoning — task. Science CBSE, Class 9 New.

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Select the correct answer:

A student estimates that their school bag has a mass of about 5 kg. Which reasoning best supports this estimate?

The value is correct only if measured using a digital scale
The estimate is based on adding approximate masses of books, lunch box, and other items
All school bags weigh exactly 5 kg
The estimate is purely a guess

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7. TBQ - Estimation and scientific reasoning