That question is a pretty vague question. There is a music band called The Heaviest Thing On Earth. As for the heaviest object on the earth, the Great Pyramids in Egypt are the heaviest man made structure, weighing in @ six million tons. But of course, there are some mountains that weigh a lot more than that and you could also say the ocean is a continuous entity that would weigh the most.
the earth is 75% water so I am willing to say that it is it. All the oceans combined makes the heaviest thing on earth.
the heaviest thing in the universe is the univesre's mass
The heaviest metal ON EARTH that is not created in a lab is plutonium.
Buildings , Pyramids , mount Everest and marine and army( it's really the effiel tower)
The largest and heaviest living creature on earth is the blue whale.
Osmium is the heaviest metal on the planet earth.
The heaviest animal ever to live on the planet Earth is the blue whale. It is heavier than even the heaviest dinosaur.
The heaviest thing inside of a home is probably the fridge. Unless of course you have something huge that I do not have.
The heaviest thing in the world is the thing with the most mass, like for example a supertanker, a mountain, a battleship, an elephant, etc.
The heaviest animal is the blue whale which weighs 190,000kg (418,878lb)
The Giant Sequoia Tree The heaviest animal is the blue whale
Uranium is the heaviest naturally occurring actinide.
The Blue Whale
The continental layer.
a rocket ship
At sea level
The Biggest rock.
Mercury is the heaviest liquid on Earth. For reference, one fluid ounce of Mercury weighs over eight-tenths of a pound.