Question

What happens to water molecules as water is heated?(1 point)
Responses

The molecules get closer together.
The molecules get closer together.

The molecules sink.
The molecules sink.

The molecules become less dense.
The molecules become less dense.

The molecules move more slowly.

Answer 1

The correct response is:

**The molecules become less dense.**

As water is heated, the molecules gain energy and move more rapidly, causing them to spread apart, which decreases the density of the water.