Quote:
Originally Posted by kp11364
In regard to a recently closed thread about rising water levels, try this:
1. Fill a drinking glass half-full with water
2. Add 2-3 ice cubes. Look at the water level.
3. Put the glass aside; let all the ice melt. You will see that the water level remains the same. Why? Because the amount of water remains the same, regardless of the state of the water.
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A few more experiments:
1. Fill your glass half full and mark the level. Now slowly slide an ice cube into the water. You will see that the water level goes up. This is what happens when a glacier calves or an ice shelf breaks off and falls into the ocean.
2. Fill your glass half full and mark the level. Now hold an ice cube above the glass until it has all melted. You will see that the water level goes up. This is what happens when a glacier on land melts and its water flows to the ocean.
3. Fill a kettle 2/3 full and mark the level. Now put it on a burner and heat it to just below boiling. You will see that the water level goes up. This is what happens when any water gets warmer and expands.
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