Multiple choice

If you put an empty plastic bottle into a river it will not sink. Why?

  1. It is lighter in weight.

  2. It is heavier in weight.

  3. Both water and bottle are heavy.

  4. Both are light in weight.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The bottle is lighter in weight because it is filled with air. So it is lighter than water.