Why is it when you exhale underwater you make bubbles?

Question

Sounds like a silly way to ask this question but...I want to know why breathing out creates bubbles underwater... A scientific answer would be nice.

Answer 1

When you exhale underwater, you push that air into the water. It's the same as if you pushed an apple or a tennis ball into the water: the water will be displaced to make room for the air.

The air that displaces the water becomes mostly round for same reason that soap bubbles are round: surface tension tends to pull the air-liquid interface into a sphere. And, like soap bubble, bubbles underwater may not be completely round because other forces distort the sphere.

Answer 2

Uuuuhhh... Because you are under water, a liquid and are exhaling CO2, a gas.

Answer 3

when you exhale you are breathing out carbon dioxide which is a gas. The escaping gas forms bubbles because of the surface tension of the water is pressing on the gas from all 360 degrees. We all know that 360 degrees creates a full circle which is why the bubbles are formed. Since the gas is less dense than the liquid it eventually rises and finds it way to the top  of the water where it finally bursts and releases the gas into the atmosphere

Answer 4

well the air and gas in your lings goes out and the gravity i guess forms round pockets of air that float to the surface the gas thing is right i know  

Answer 5

Bubbles form, and coalesce into globular shapes, because those shapes are at a lower energy state.

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Answer 6

the air you are exhaling goes into the water and up out because it is lighter than the water

Answer 7

cuz what you exhale is a gas and water is a liquid and when its traveling to the surface  guess it travels in the form of bubbles