Question

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

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

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

The molecules sink.
The molecules sink.

The molecules move more slowly.

Answer 1

The molecules become less dense.

(Heating increases their kinetic energy so they move faster and spread farther apart, decreasing the water's density.)