Question

Juliana wants to find the mass of a watermelon. what unit should she use?

Answer 1

I would recommend her to use kilograms:

grams are the standard weight unit used in the majority of the countries and in science- that's why it's better than pounds.

But kilograms are better than grams, since a watermelon weights around 2 kg, so it's easier to remember than 2000 grams.