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

Question

Responses

The molecules move more slowly.
The molecules move more slowly.

The molecules sink.
The molecules sink.

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

The molecules become less dense.

Answer 1

As water is heated, the correct response is that:

The molecules become less dense.

When water is heated, the water molecules gain energy and begin to move more quickly, which causes them to spread out and become less dense. This is why warm water tends to rise above cooler water.