
States of Matter quiz
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Where does the water on the outside of a cold glass come from?
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More questions about States of Matter
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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How do a metal's particles change when it's heated?
Answer: They move faster
Why: The metal expands because its jiggling particles push slightly further apart; each particle stays the same size.
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Why are some old church windows thicker at the bottom?
Answer: Glassmaking flaws
Why: Medieval glass at room temperature would flow at most about 1 nanometer per billion years, far too little to ever see.
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What is the white cloud above a boiling kettle made of?
Answer: Water droplets
Why: Right at the spout there is a clear gap: that invisible stretch is the actual water vapor, before it condenses.
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Roughly how much of an iceberg sits below the waterline?
Answer: About 90%
Why: Ice floats because hydrogen bonds lock its molecules into an open, honeycomb-like lattice that takes up more room.
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By about how much does water expand when it freezes?
Answer: About 9%
Why: Frozen pipes usually split where there is little or no ice, because expanding ice squeezes the trapped water toward a closed tap.
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Roughly how many times more space does steam take than water?
Answer: About 1,700 times
Why: So a single liter of water boils into about 1.7 cubic meters of steam.