Lesson: Chapter 9 — Heat

9.4. Thermal expansion 4 of 5 Reset answers

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Question 4

In activity 9.4, why does the water level first drop a little?

A Water contracts when heated B Water evaporates C The glass warms and expands first D The stopper leaks

The right answer is the one marked above.

The glass warms and expands first. Then the water expands more than the glass, and the level rises.

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