Which unit is best to measure the mass of a toothbrush, grams or kilograms?
Lots of things weigh a gram, like a paperclip. A kilogram is 1000 grams. Lots of things weigh kilograms, like a large pumpkin.
So which unit would be best to measure the mass or weight of a toothbrush? Since a toothbrush weighs between 15 and 20 grams, grams would be the best unit to measure the mass of a toothbrush.