Question

a water pipe bursting when it freezes is an example of waters ability to
a expand.
b contract.
c vaporize.
d sublimate.
click the button or type the letter next to your answer.

Explanation:

When water freezes, it changes from liquid to solid (ice). Unlike most substances, water expands as it freezes (its density decreases in the solid state compared to liquid at 4°C). This expansion exerts pressure on the pipe, causing it to burst. Option B (contract) is incorrect as contraction would reduce volume. Option C (vaporize) is liquid to gas, not freezing. Option D (sublimate) is solid to gas, not relevant here. So the correct answer is related to expansion.

Answer:

A. expand.