Question

How do water's relative densities as a solid and a liquid differ from that of most other substances?

Water's liquid form is less dense than its solid form, while the opposite is true of most other substances.
Water's solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities.
Water's solid form is less dense than its liquid form, while the opposite is true of most other substances.
Water's solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities.

Answer 1

Answer: Under normal ambient conditions water is less dense as a solid than as a liquid, so ice floats on water. Most materials are more dense as solids.

Explanation: When water freezes, the molecules do not stack into a close-packed structure. They form a relatively open, honeycomb-like arrangement.

Answer 2

C

Step-by-step explanation:

You may not live in a part of the country that gets winter. If you did, you'd know the answer to this just be observation.

Rule: Less dense things float on more dense things.

A is incorrect. If the liquid form of water was less dense, it would float on the ice. That's not what happens.

B is not true. Liquid water is denser than solid water. That's why ice floats.

C is the answer.

D is not true. The densities can vary.