coconut
9 is the best estimate whole number
Grams.
I would describe their weight in grams.
"Kilogram" is not a unit of weight. It's reasonable to expect that a cat might have a mass of four kilograms.
pounds
estimate it
2 tons
1200-1500kg
Reading the label will give you a very good estimate.
hold it and compare it to a kilo
The weight of a standard letter is typically around 5 grams.
10 meters
6 ounces
The weight that a mouse can lift will depend on its size. It is estimated that mice can lift things that twice their body weight.
4 inches
the best mouse to keep for a pet is female fancy mouse