Which observation best demonstrates the surface tension of water? (1 point)

Question

Responses

A stream flows around rocks and other obstacles, but always downhill.
A stream flows around rocks and other obstacles, but always downhill.

Water freezes at 0°C and boils at 100°C.
Water freezes at 0°C and boils at 100°C.

A small insect stands on a lake, without swimming or paddling.
A small insect stands on a lake, without swimming or paddling.

Water dissolves sugar, salt, and many other substances.

Answer 1

The observation that best demonstrates the surface tension of water is:

A small insect stands on a lake, without swimming or paddling.

This behavior illustrates the concept of surface tension, as the surface tension of water allows some small insects (like water striders) to walk on the surface without sinking.