Once the ball is at the bottom of the cup or glass, look at your water level again. Write down what you think will happen if you put the golf ball or marble in the cup of water. Write down your observations. Scientists working on Aquarius conduct much of their research out on Conch Reef. Of course, they have to leave Aquarius and go out to the reef itself.
Neutral buoyancy means a diver is neither sinking nor rising to the surface.
The thickness and type of dive suit they're using The type of air tank they're using The weight or buoyancy of equipment they carry To achieve neutral buoyancy, divers use a weight belt to add weight to themselves and counteract their tendency to float to the surface. Divers also use a buoyancy compensator or BC to which they can add air if needed making them more buoyant. If you fill a balloon with air and put it underwater it will float to the top. Aquarius weighs about 80 tons in the air but is almost neutrally buoyant in water. It is attached to a base plate that weighs 120 tons, so it stays firmly anchored to the ocean floor.