it would be the same wherever you are
No, the mass of the elephant will never change, but on the moon the elephant would weigh less. Weight is the affect of gravitation wich is the attraction of two bodies that have mass. The mass of the moon is smaller then that of the earth so the gravitational pull would be less.
The mass of an object remains constant regardless of its location in the universe. So, an elephant's mass would be the same on the Moon or Mars as it is on Earth. However, an object's weight, which is the effect of gravity on its mass, would differ on the Moon and Mars due to variations in their gravitational pull.
Mass and weight are two different things. Mass does not change, but weight changes depending on the gravity acting on the item. An elephant has the same mass on Earth, the Moon, or when weightless in orbit. The weights in each of those location will vary greatly.
Kilograms would be used to measure the mass of an elephant.
tons
You would use the unit of measure called "kilograms" to measure the mass of an elephant.
An elephant weighs more on Earth than on the moon because Earth has a greater gravitational pull than the moon. Weight is the measure of the force of gravity acting on an object, so the stronger the gravity, the greater the weight of the object.
This question requires a little guessing at your intended context. But here's a possible answer: The elephant is considerably more massive than you are. Both you and the elephant are weightless, but you both retain your normal respective mass. Let's put you both in space suits. From your position next to the elephant, you give him a little push. For a given force (from the push) the change in your respective motions will be inversely proportional to your respective masses, so your change in motion will be much greater than the elephant's. But both motions will change, so yes, you can push an elephant in space, but he pushes back without even trying.
An elephant would weigh less on the moon due to the moon's weaker gravitational pull compared to Earth. The weight of an object depends on the gravitational pull acting upon it, so on the moon an elephant would experience less gravitational force and therefore weigh less.
A ton for a rough and ready measure. A tenth of a ton (100 kilograms) if you were a biologist following the elephant's development in more detail.
the moon
There is gravity on the moon! The gravity on the Moon is 1/6th that of what is observed on Earth. An object with a weight of 36 kg on Earth would weigh 1/6th that on the Moon. 1/6th of 36kg is, 6 kg. An object with a MASS of 36 kg on Earth would have the same 36 kg MASS on the moon. Mass is the amount of matter that makes up an object, whereas WEIGHT is the measurement of the force of gravity on that MASS. This is why your weight will change when visiting other planets, but your mass stays constant plant to planet!