Multiple choice

Why do bubbles rise to the top of the water?

  1. Because the bubbles are made of gas

  2. Because the bubbles are more dense than water

  3. Because the air wants to escape the water

  4. Because the bubbles are less dense than the water
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bubbles rise because the gas inside them is significantly less dense than the surrounding liquid water, causing a buoyant force to push them upward.

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